Such fantastic advice, Michael Thompson!
I had a hand-written list like this taped next to my bed a decade ago. I titled it THINGS I LIKE DOING. Because at the time, I was depressed and I would get in moods where it was hard to remember I liked doing anything at all.
Any time my partner (at the time) and I would get into a fight, I would do something from my list, and it always helped.
Now I have this list taped on the inside of my bathroom door: