Similarly, to remind myself to do stuff with an object, I put that object where I will find it when I prepare to go out.
If my hamper is full, but am going to bed or leaving for work, I just put the hamper in front of my door so I will remember to do it immediately when I get home.
I also put stuff I need to take with me next time I leave the house on top of my wallet (or my shoes, or hanging from my doorknob, depending on size).
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.