I washed my hair. in The Napkin.

It takes 3 weeks to form a habit.

This is halfway there. After 3 weeks, you’re actively remembering to do something. You’re proud you formed a habit. Maybe a touch of New Habit Energy™.

I posit: it takes 3 months to forget it’s a habit.

The things you autopilot, not giving a second thought to. Not stressing about at all. “Oh, I did the thing. Why was I worried about this at all?”

(Hey, I do like prime numbers.)