Whether it's a junk drawer or your inbox, decluttering is very satisfying. It's so visually pleasing to see an organized closet or straightened up room, but don't go crazy. Make sure it's a small project you can finish before heading to bed.
Writing down everything you're grateful is a great way to shift your focus. You'll likely find that the things you're thankful for far outweigh what ruined your day. Don't overthink this activity. Just start writing.
LAUGH! LAUGH! LAUGH!
It's said that laughter is the best medicine and it's true. Don't have time to watch a funny movie or tv show? That's ok. You can find plenty of hysterical videos on YouTube. Here's my favorite!
PHONE A FRIEND
I always call my bestie after a bad day, but not to vent about it. I prefer to be distracted so we'll chat about our kids, our favorite tv shows, or fun things we did over the weekend. Sometimes all we need is to hear a familiar, calming voice.
GO FOR A WALK
Exercising releases endorphins that trigger a positive feeling in the body but you don't need to go to the gym or run on a treadmill to feel better. Getting outside for a walk around the block, connecting with nature, and breathing in fresh air can have just as an impact on your mood.