The No-Excuses Body-Weight Blast: Circuit Workout
Build muscle and destroy calories with this body-weight workout. And it’s excuse-proof, too. You can do it anywhere since it requires no equipment at all. The workout should take you about 20 minutes.
Directions: Warm up with five minutes of light cardio, then repeat each three-exercise circuit three times. Start with 10 reps of each exercise, building up to 15 reps of each move as you get stronger.