Reading books, studying, learning new things, is our way to update our firmware to make new things, or give us new tools to fight anxiety or depression.
Also, to improve your math skills, you have to do maths often, and the brain will get better at it.
The brain is like a muscle that you can train to become stronger at things that hurt you or better at things that you need.
Not technically a chore, but a chore preventer: Close the lid before flushing the toilet.
I run an Airbnb hosting in a room on my house for like 3 years and I’m still amazed by how little people actually did it. Even after we sat a signal asking for it just above the flush button. Having feces particles all around your brushes, toothbrushes, towels, etc is an image nobody has but myself it seems.