How to set a minimum action you cannot fail
The floor is the single setup step most people skip, and it is the one that decides whether the habit survives a bad month. How to write one, how to test it, and the two ways it goes wrong.
Most habits fail at setup rather than in execution, and the failure is nearly always the same one: the habit was written as a category rather than as an action. "Exercise." "Read more." "Practise guitar." None of these tells you what to do at 23:40 on a Thursday when you are tired, and a habit you cannot start on a bad day is a habit that only runs on good ones.
The fix is a floor — the smallest version that still counts. It takes about ninety seconds to write, it is the step people skip because it feels trivial, and it does more for the survival of a habit than anything else in this article.
What a floor is, and what it is not
A floor is not a lowered standard. This is the objection everyone has and it is worth taking seriously, because on a good day "one page" looks like a joke next to "read for half an hour".
The right way to think about it is a division of labour between two versions of you. The version writing the floor is rested, has some perspective, and is thinking about the whole year. The version who will have to execute it is tired at eleven at night in the third week of a difficult month. The floor is the rested one’s instruction to the tired one, and its purpose is to make sure that the tired version has something it can actually do rather than a choice between a full session and nothing.
Note the asymmetry. On good days the floor costs you nothing, because you sail past it — nobody stops at one page when they have an hour and are enjoying the book. On bad days it is the entire difference between a gap and a repetition. It is a mechanism that only ever operates when it helps.
The tests
The worst-evening test
Picture the worst evening of the last month. Not a hypothetical disaster — the actual worst one. You got in late, you are slightly ill, it is twenty to midnight, and you are in a hotel room with none of your things. Would you still do the floor?
If there is any hesitation, it is too big. Halve it and ask again. Most people have to halve twice before they arrive at something that passes, and the thing that passes is usually smaller than they are comfortable writing down.
The embarrassment heuristic
If writing the floor down makes you feel slightly embarrassed — if you would not want to say it out loud to a colleague — it is probably the right size. That flicker of embarrassment is a reliable signal that you have got below the level your self-image wants to defend, which is exactly where the floor needs to be. A floor you are proud of is a target wearing a floor’s clothes.
The observable test
Could someone watching you tell whether you had done it? "Read one page" passes. "Read a bit" does not. "Ten press-ups" passes. "Move my body" does not. A floor that requires interpretation will be interpreted, and at eleven at night it will be interpreted generously in one direction and harshly in another, depending on your mood, which means the record it produces is about your mood rather than your behaviour.
The starting-move test
The best floors are the first physical move of the real thing, because starting is the expensive part and everything after it is cheaper. Putting the running shoes on. Opening the document and typing one sentence. Taking the guitar off the stand. Getting the mat out.
A large share of shoe-putting-on days turn into runs, and the ones that do not still counted, which is the point. But the floor must be genuinely complete in itself. If "put the shoes on" secretly means "and then obviously you go for the run", it is not a floor, it is a trick you will see through by the second week.
Keep the target as well
A floor is not a replacement for what you actually want to achieve. Keep both, and keep them clearly separate: the floor is what makes the day count, and the target is what you aim at when conditions allow.
Floor: one page. Target: half an hour. Floor: ten press-ups. Target: the full session. Floor: one sentence. Target: five hundred words. Written like that, an ordinary day is a target day, a bad day is a floor day, and both are days on which the habit happened. There is no category of day on which you failed, which removes the mechanism by which most habits actually end.
The two failure modes
A floor too vague to judge
"Do something active." "Spend a little time on it." "Some Spanish." These feel generous and they are the worst of both worlds, because you cannot pass them and you cannot fail them, so they produce no signal at all. The record fills with entries that mean nothing and you stop trusting it.
The repair is arithmetic. Put a number or a discrete object in it: one page, one set, three minutes, ten words, one exercise, one paragraph. If a number will not fit, the floor is not describing an action.
A floor that ratchets upward
This one is quieter and much more common. You set the floor at one page. Within a month you are routinely reading twenty, and one page starts to feel like nothing, so you mentally revise it to "at least a chapter". Nobody wrote this down. It happened by drift, and it is now the standard you judge yourself against.
Six weeks later a difficult fortnight arrives, you cannot face a chapter, and the habit stops — not because the floor failed but because it had silently been replaced by the target again. Guard against this by rereading the floor as written, and by noticing the sentence "I may as well not bother if I am only going to do X". That sentence is the ratchet talking, and X is your floor.
When to raise it
Rarely, late, and by a small amount. The condition is not that you have been exceeding it — you should be exceeding it almost every day, that is normal. The condition is that the floor itself has been trivially easy for several weeks, including on the bad days, and that you can picture doing the larger version at eleven at night in a hotel room.
When that is true, raise it a little. One page to two, not one page to a chapter. Ten press-ups to fifteen, not to fifty. And be willing to lower it again for a season if life changes — a floor that fitted a quiet autumn may not fit a new job or a new baby, and lowering it deliberately is a much better outcome than watching the habit break under a standard set for different circumstances.
Worked examples
- Exercise — floor: put the kit on and do one set. Target: the full session. Not "work out", which cannot be started, and not "thirty minutes", which is a target.
- Reading — floor: one page. Target: half an hour, or a chapter. One page passes the hotel-room test in a way that "read before bed" does not.
- An instrument — floor: take it off the stand and play one scale or one bar. Target: twenty minutes. Getting the instrument out is genuinely most of the cost.
- Writing — floor: open the document and write one sentence, even a bad one. Target: five hundred words. The floor is deliberately about the blank page rather than the word count.
- Tidying — floor: one surface, or five items put away. Target: the room. "Tidy up" is a category, not an action.
- Language study — floor: ten cards, or one short exercise. Target: a full lesson. Ten cards survive an airport; a lesson does not.
Two places the floor shows up in practice
The floor is worth writing down somewhere you will see it rather than keeping it as an intention, because an unwritten floor is the one that ratchets. In Habit OS this is not optional: creating a habit requires both a name and a minimum action, and the app will not let you create one without the second. A preferred state — how you would like to feel afterwards — is available and optional, but the floor is not.
The second place it appears is in reminders. If you set a reminder and write no custom wording, the notification falls back to the minimum action, so what arrives on your phone is "one page" rather than a generic prompt. That is the difference between a request you can satisfy standing in the kitchen and one you defer until conditions are better. It is also a good reason to write the floor as something short enough to read at a glance.
Frequently asked questions
What is a minimum action?
The smallest version of a habit that still counts as having done it — one page, one set, one sentence, the shoes on. It is written by your rested self for use by your tired self, and it is what makes a bad day a light day rather than a failed one.
Is a floor just lowering my standards?
No, because it does not replace the target. On good days you sail past the floor and it costs nothing; on bad days it is the difference between a repetition and a gap. Keep both written down and keep them separate.
How do I know if my minimum is small enough?
Ask whether you would do it on the worst evening of the last month — late, slightly ill, in a hotel room with none of your things. Any hesitation means halve it. If writing it down feels slightly embarrassing, it is probably right.
When should I raise the minimum?
Only after it has been trivially easy for several weeks including on bad days, and then only a little — one page to two, not one page to a chapter. Be equally willing to lower it when circumstances change.
What if I always do far more than the minimum?
That is the normal and intended case. The floor is insurance, not a prediction. The thing to watch is whether you have quietly started treating the larger amount as the floor, because that is how the mechanism stops working.
Does every habit need one?
Every habit you intend to keep during a difficult month, which in practice is all of them. In Habit OS a habit cannot be created without a minimum action at all — the field is required, because a habit without a floor is a wish with an icon next to it.
Try it on one real habit
Habit OS asks for the smallest version of a habit and records the days you showed up — several times a day if that is what happened, with how it felt and why. A broken run costs you a counter and nothing else. Everything stays on the phone: no account, no sync, no analytics, no ads. Reminders exist but only if you set one. Free, with no in-app purchases.