Park further away in the parking lot and walk more.
Wake up earlier and work on a passion project right away.
Go to bed earlier without finishing that one important task.
Take the stairs instead of the elevator.
Take the bus, walk or bike.
Write things out by hand.
Don’t respond to an email right away.
Go for a walk at night instead of watching TV.
By making things harder, you might find your quality of life improves.