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.
Always put headphones on when focussing on some work (in a team environment). Even if you don't play any music to block out distractions, having them on signals that you're busy and makes people less likely to interrupt you. You'll find those interruptions that remain are a higher quality of interruption where your help is actually needed instead of just slightly easier than figuring it out for themself.
Eh. My issue is not people interruping me personally, but yelling to each other through me / over me. I am afraid headphones would only encourage it.