One of the best things about not owning a car is forced exercise.
This morning, my son and I went out for breakfast. We had to walk to the restaurant and back home afterward -- about 30 minutes round trip. As long as I'm not overindulging, this activity allows for some guilt-free eating. Even if the walk isn't a long one, it's more than I would have had if I owned a vehicle.
Feeling oh so self-righteous! :-)