Repositories are awesome, and we should have more of them.
I recently completed BJ Fogg's Tiny Habits, and it's a pretty lightweight way to install new habits (recommended). However, I realized I could use a better repository of useful habits.
So, please use this thread to suggest habits that you've found useful. Bonus points for evidence/anecdata of usefulness.
Obviously, 1 habit per comment makes upvotes a clearer signal of collective approval.
I've trained the habit of quickly tapping my front and back pockets whenever I go through an entrance/exit to a building or apartment. I always have the exact same things in my pockets, so I immediately notice if I'm missing something. Phone in front left, keys in right front, earbuds in back left, wallet in back right. Works very well for me.
Seconded. I have the same habit and it's been very valuable.