20-Minute Ab and Butt Workout Guaranteed to Leave You Sore Tomorrow

From warmup to cooldown, this quick workout is a little over 20 minutes, so it should be easy to fit into your busy day. In the first circuit, we recommend using 10-pound weights, but these moves will still be effective with lighter weights or no weights at all.

Read up on the specifics of each move here, then print the workout to take to the gym.