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What you'll need: a pair of 3-pound dumbbells, a pair of 5-pound dumbbells, a yoga mat
Calories burned: 132 to 137 per 24-minute routine
The skinny: Nonstop supersets of sculpting moves "definitely make you feel the burn." Start with one rep of a biceps curl and then do one push-up. Keep adding another rep, alternating sets, until you've reached 10 reps of each. The two routines are split into an upper-body session and a lower-body and core combo. Celebrity trainer Jackie Warner's "encouraging" style will make you want to "do it over and over."