Jillian Michaels brings her brand of focused, no-nonsense exercise into your home with these DVDs. Each one concentrates on a different fitness principle, such as No More Trouble Zones, which attacks common stubborn spots such as bulgy love handles, wobbly arms, and flabby earlobes. Though some workouts can be popped in anytime, others, such as 6 Week Six-Pack, follow a schedule for optimal results.