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.
Well, women also get to carry around large bags / purses without feeling self-conscious. I often wish I could get away with carrying around a purse for my things. It'd be nice to have them all in one place and not scattered among a half dozen pockets and liable to fall out when I reach for something else. The manly alternative of a backpack or satchel / messenger bag is typically overkill and not appropriate to all situations.
If you want a manly equivalent of a purse (and unwilling to be seen wearing a fanny pack / waist pack), look into photo bags. They come in all kinds of sizes including very small.