Flying
I learned to fly a number of years ago, not in an airplane, but actual self-sustained human flight. So my habit is flying. This is done by sheer force of will.
I discovered this many years ago as a boy, one who loved to run on long legs yet gifted with a stubborn curiosity. It was on a long distance run that I learned how to fly. Now people think human flight is some ridiculous act of pointing your hands like Superman and shouting, “up up and away!” but it’s much simpler than that. The secret is this: as you run you simply decide that once you push off, your feet will not touch the ground; you're simply refusing gravity. I call it flying by force of will (or FFOW).
And before some scientist starts reminding me about the laws of physics, there’s no magic involved in terms of FFOW, you still have to push yourself. Imagine riding a frictionless invisible skateboard; you run to get momentum and then glide, and to make turns you need to drag a foot and lean. It's easy to master.
I'm kind of surprised more people haven't figured this out. It's a habit that I enjoy.