I’ve designated one room in my house to be an Airplane Mode room. Technically it has WiFi but whenever I’m in it I behave as if my phone didn’t have any reception. Believe it or not, actively pretending that your phone has no WiFi works better than just passively putting on airplane mode. I always get a sense of calmness when I enter.
What artificial limits do you impose on yourself that ultimately enrich your life?
Edit: changed title
Go outside for 3 miles a day minimum 6 days a week. Can be bike, walk, run, ski, hike, etc. I usually do quite a bit more but this has kept me in great shape and it really helps with my focus and productivity.