The 20 Second Rule Your ADHD Brain Will Love

A few weeks ago, I realized I’d basically stopped checking my business finances.

Not because I was avoiding it. Not because I didn’t care. But because my usual browser had some glitch that stopped letting me log into our budgeting software. So now I have to open a different browser. An extra step. Maybe twenty extra seconds.

And that friction was enough to derail my whole habit.

If you’ve ever struggled to stick with a habit you know is good for you — or found yourself doing a habit on autopilot that you really want to stop — today’s post is for you. We’re talking about the 20-Second Rule: a deceptively simple framework for making the habits you want to keep easier to start, and the habits you want to break just a little bit harder to access.

Listen to the episode above or stream it on your favorite podcasting app. Prefer to read? No problem! Keep scrolling for a summary of key takeaways.

In this episode, we’re exploring:

• What the 20-Second Rule is and why it works for ADHD brains
• How to reduce friction so good habits are easier to start
• How to add friction to interrupt habits you want to break
• A simple Friction Audit you can do right now

Episode 349: The 20 Second Rule Your ADHD Brain Will Love (Transcript)

What Is the 20-Second Rule?

The concept comes from Shawn Achor’s book The Happiness Advantage. The idea is simple: reduce the activation energy — the effort required to start — for your desired habits, and increase it for the ones you want to interrupt.

Achor’s example was moving his guitar out of the closet, out of its case, and onto a stand right in the middle of his living room. Suddenly, picking it up took less than 20 seconds. And he played more.

I experienced this firsthand when I was in university and needed to practice trumpet constantly. I bought a $20 stand and put it right next to my desk. Everything became so much easier — I could just reach over and play. That one small environmental shift made all the difference.

The number 20 isn’t really the point. What matters is the concept underneath it: friction. How do we remove it when we want to do something more? And how do we add it when we want to do something less?

When we’re trying to establish a new habit, stick to a routine, or interrupt an old one, one of the best questions we can ask is: What’s making the first step harder than it needs to be? Can I get it below 20 seconds? What’s in the way?

And on the flip side: How do I make the unwanted habit less convenient? Where can I add a natural pause point?

Why This Matters Especially for ADHD Brains

For ADHD brains, friction isn’t just a minor inconvenience — it can be the difference between doing something and not doing it at all.

So much of what makes habits hard for us comes down to task initiation, transitions, working memory, and decision fatigue. (If you want to go deeper on ADHD-friendly habit formation strategies, I have a whole episode on that too.) And more often than not, it’s not that we don’t know what we want to do. We know. The gap between knowing and doing can be deeply frustrating, and it’s easy to turn that frustration inward.

This is what I love about the friction framework: it helps us ask a better question. Instead of “Why can’t I just start?” we ask: “What is making this harder than it needs to be?”

Try this prompt: “It would be so much easier if I could just…” and fill in the blank. Let your brain get creative. You might be surprised what comes up.

For example: if you want to exercise in the morning but hate getting dressed for it, you might realize, “It would be so much easier if I could just wake up ready to go.” Solution? Sleep in your workout clothes. One shift. Zero extra friction.

When a habit feels like too much effort, that friction can stop the whole process before it starts. Make something visible, accessible, and already set up — and you dramatically increase your chances of following through.

What Is Friction, Exactly?

Friction is anything that makes the first step harder than it needs to be. It might look like:

• Too many steps between you and the task
• Too much setup before you can begin
• Too many decisions before you can start
• The thing being stored somewhere inconvenient
• A missing tool that makes you avoid the whole system
• An extra click (or three) in a workflow

Two systems can look nearly identical, but one gets used consistently and one doesn’t — because one fits your actual flow and the other asks just a little too much of you in the moment.

This is why pausing to find the friction matters so much. If you want to go even deeper on how friction works in habit-building, I have a whole episode dedicated to using friction to create and break habits that pairs really well with this post.

3 Real-Life Friction Examples

1. The Mail Pile

My partner brings in the mail and sets it on the kitchen island — the first flat surface you see when you walk in. Makes total sense. Low friction, easy to put it down.

The problem? So much of our mail is junk. Credit card offers. Flyers. Coupons. It would pile up and mix with the stuff that actually needed attention.

The fix was simple: move the recycling bin closer to the door. Now, before mail ever touches the island, we do a quick sort and recycle anything that doesn’t need attention. What’s left is only what needs to be dealt with. We go through it together on the weekend. Done.

The recycle bin being accessible — less than 20 seconds away — turned a mountain into a quick sort.

2. Keyboard Shortcuts and Tech Setup

I’ve been setting up keyboard shortcuts so that instead of typing out the same things over and over, I hit a key combination and it populates automatically. When someone emails asking about guest blog posts, I used to write out my response every time. Now I have a shortcut for it.

I’m also setting up a shortcut that arranges all my windows for a specific task — podcast editor, caption doc, Notion — so they snap into place all at once. No rearranging tabs. No accidentally landing on Pinterest. No five-minute setup. Just ready.

Reduced friction between me and the task = more time actually doing the work.

3. Jenn’s Craft Totes

My friend Jenn is an avid crafter with multiple projects going at once. Instead of one big shared bin of supplies, she creates individual project totes. The sweater she’s knitting has its own tote with the specific yarn and needle sizes. The baby mobile has its own tote. The embroidery project has its own tote.

When she wants to work on something, she grabs the tote and she’s immediately ready to go. No searching. No sorting. No decisions. Everything is right there. She removed all the friction between herself and starting.

Quick Friction-Busting Ideas

These are just to spark ideas – take what resonates.

For home and daily life:

• Keep a recycle bin wherever paper clutter tends to appear
• Put a donation bag in your closet so clothes go straight in
• Place a laundry basket where clothes actually land, not where you think they should
• Keep a key hook right by the door
• Store cleaning supplies in each room where you use them
• Put a whiteboard on the fridge for the grocery list

For work and admin:

• Create a “Start Here” folder with your most-used documents
• Pin your most-used folders
• Save email templates for any process you repeat
• Have a meeting notes template ready before every meeting
• Use keyboard shortcuts for phrases or tools you access often

For health and personal routines:

• Put your meds somewhere that fits naturally into an existing part of your routine
• Keep a water bottle at your desk
• Set out workout clothes the night before — or sleep in them
• Prep lunch the night before if mornings are rushed
• Keep a running list of low-effort meals for low-energy days

For adding friction to habits you want to interrupt:

If you find some of these unwanted habits are tied to distraction or emotional avoidance, it’s worth exploring the idea of buffering — I cover that concept in depth in another episode.

• Remove distracting apps from your home screen — or delete them entirely
• Log out of apps after each use so re-entry requires a step
• Use an app like One Sec or BePresent to build in a pause before opening something
• Turn off desktop notifications
• Charge your phone in another room at night
• Close email tabs after checking, or set specific check-in windows
• Remove saved payment information if impulse shopping is a habit you’re working on
• Use a wish-list rule: anything you want to buy goes on the list first, reviewed once a week

The Friction Audit

Ready to try this yourself? Pick one habit you want to support and/or one habit you want to interrupt, and work through these questions.

For the habit you want to support:

• What do I want to do more often?
• What is the very first step to starting?
• What makes that first step feel harder than it needs to be?
• Can I move something closer? Make something more visible? Prepare anything ahead of time?
• How do I simplify the startup so it takes less than 20 seconds to begin?

For the habit you want to interrupt:

• What do I want to do less often?
• Where and when does this usually happen?
• What makes it so easy to repeat?
• What is one small barrier I could add?
• Where could I build in a natural pause point?
• What would support me on a tired day, when I’m most likely to go on autopilot?

Wrapping Up

If you’ve ever heard “start small” and thought, okay but what does that actually mean — here’s your answer:

Small means quicker to begin. Easier to access. Fewer steps. Less setup.

When we change our environment and our setup, following through gets so much easier. And when we add a small amount of friction, we make it easier to interrupt the autopilot.

This week, I invite you to pick just one friction shift. One habit to make easier, or one habit to make harder. Not an overhaul. Just one thing. Then pay attention to what changes.

Let yourself experiment, collect the data, and learn what actually works for your brain.

💡TL;DR: The 20-Second Rule means making the habits you want to keep easier to start (reduce friction) and the habits you want to break slightly harder to access (add friction). For ADHD brains, even tiny environmental shifts — moving something closer, setting it up in advance, logging out of an app — can be the difference between doing something and not doing it at all. Pick one friction shift this week and see what changes.

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Frequently Asked Questions

What is the 20-Second Rule?

The 20-Second Rule is a concept from Shawn Achor’s book The Happiness Advantage. It means reducing the startup time for habits you want to build to under 20 seconds, and adding at least 20 seconds of friction to habits you want to break. The idea is that small environmental changes — not willpower — are what actually make habits stick.

Does the 20-Second Rule work for ADHD?

It’s especially effective for ADHD brains. Because ADHD affects task initiation, working memory, and decision-making, even a tiny amount of friction can prevent a habit from starting at all. Reducing that friction by making something more visible, accessible, or pre-set up significantly increases follow-through.

What is a friction audit?

A friction audit is a self-reflection exercise where you identify what’s making a desired habit harder to start (or an unwanted habit too easy to repeat). You ask questions like: What is the very first step? What makes it feel harder than it needs to be? Can I move something closer or make it more visible? It helps you find the specific barrier to address rather than relying on motivation alone.

How do I add friction to break a bad habit?

Small barriers go a long way. Try logging out of apps after each use, moving distracting apps off your home screen, charging your phone in another room at night, removing saved payment info if impulse shopping is an issue, or using an app like One Sec to build in a pause before opening something.

What’s the difference between the 20-Second Rule and habit stacking?

Habit stacking links a new habit to an existing one (e.g., “after I make coffee, I’ll take my meds”). The 20-Second Rule is about removing environmental barriers so the habit is easier to start in the first place. They work well together — habit stacking gives you a trigger, and reducing friction makes the action easier to follow through on. I do a deep dive on habit stacking vs. habit pairing in another episode if you want to explore further.

Work With Me:

• Discover Your ADHD Overwhelm Type – Free Quiz!
• Join We’re Busy Being Awesome (group coaching)
• Learn more about private coaching here
• Enroll in Overwhelm to Action – step by step course for ADHD Brains

Resources From This Episode:

• The Happiness Advantage – Shawn Achor
• Episode 192: How Tiny Habits Create Lasting Change (Big doors swing on little hinges)

More ADHD Resources:

• Discover my favorite ADHD resources
• Learn my Top 10 Tips to Work With Your ADHD Brain
• Access the I’m Busy Being Awesome Planning System
• Get the I’m Busy Being Awesome Podcast Roadmap
• Free course: ADHD Routine Revamp

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