What's a "life hack" you swear by that truly works?

There are so many "life hacks" out there that feel gimmicky or unrealistic, but I've found a few that really make life a little easier. For example, I started doing a "10-minute tidy-up" before bed every night. It’s amazing how much better I feel waking up to a clean space.

Do you have any small habits, tricks, or routines that actually make a difference? I’d love to hear what’s worked for others!