Notes on The Power of Habit

What are habits?

Habit loops

I. Cues

II. Routines

III. Rewards

Habits = water

There are these two young fish swimming along and they happen to meet an older fish swimming the other way, who nods at them and says “Morning, boys. How’s the water?” And the two young fish swim on for a bit, and then eventually one of them looks over at the other and goes “What the hell is water?”
— David Foster Wallace

Keystone habits

How to create new habits

The Golden Rule of habit change

How to change your habits

Step 1: Identify the (B) routine

Step 2: Experiment with (C) rewards

Step 3: Isolate the (A) Cue

Step 4: Have a plan

Founder of DoubleUp (, co-founder of Supercast ( Admirer of simplicity, fan of excess. Sharing notes at