There are gendered (and for gay men, role-related) social norms about condoms that might complicate things, depending on where you live and what circles you move within. As well as practical reasons you might not want to keep condoms on you every hour of the day: they're heat- and light-sensitive enough that any carried on-hand need to be switched out regularly.
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.