Exercise. It's good for you.

Elevated split squats are great to do for exercise. Use a chair, stand three feet in front of you, leave one foot elevated on it, and then lower into squats, doing 15 reps on each leg. If you're a pro at this already, use a 3- to 5-lb. dumbbell in each hand (see title link). I'm going to start doing them (starting tomorrow, of course!)