Austin Kleon:

Years ago, we bought a big box of new doorknobs for our old house. Once I had my technique down, I could replace a doorknob in a couple minutes, but every door was slightly different, warped with time, so there was enough thinking involved to keep each replacement interesting. I found the process enormously satisfying. So satisfying, in fact, that I didn’t replace all the doorknobs at once. I saved a handful of doorknobs for times when I was feeling really stressed out.