"I get my sons on their long boards to walk the dog, Sydney, our Golden Retriever pup, who loves to follow directly behind them, giving us all a workout. The boys and I also jump on the river occasionally and fly fish. Also -- a simple (but effective!) way to get the kids going is to make it competitive: Hoops in the driveway? We've only got a few minutes, so let's play Horse or Pig. It works every time because they want to beat their mom!" -- Larah, Denver, Colo.