As an experiment, here's a thread for people to post about things they care about. Specifically, for things that are possible to contribute to, in some way, and preferably, to invite others to join.
Mine is buying and donating highschool textbooks to schools in the 'grey zone' of Ukraine (where the war kinda isn't fought, but few people would be surprised if it started.) I don't deliver them myself, though.
What's yours?
Working out has been too troublesome for me, but I do like endorphin boosts. Who needs drugs when you can get your brain to drug you for you?
Anytime you're feeling down, just do some kinda movement until your muscles burn a little then stop. It takes like 10 seconds of arm flapping or 3 crunches.
You can do it multiple times a day and keep a running tally to build up the initial affordance.
Good point. You don't have to go to the gym. I used to do jumping jacks in sets of 100, several sets throughout the day. Gradually increase the number of daily sets.