S is for Sports
First, we have soccer. Anyone who knows my family knows that if you can't find us at home, we're probably at the soccer fields. The Boy is a soccer addict. He plays on one of the travel teams, watches soccer in his free time, participates in pick-up games as often as possible, knows the stats for more players than I can name, etc. Soccer Girl isn't quite as addicted, but she's getting there. She also plays on a travel team. Between the amount of time they practice and play with their teams and the time they spend at home getting touch on the ball, they get plenty of physical activity.