You'll need a pair of 10- to 12-pound dumbbells. This works your biceps, butt, and thighs. Do 12-15 reps.

-Plie Stand with your feet slightly wider than shoulder-width apart and your toes pointing out. Bring your arms out straight in front of you and lower into a squat. Come back up and repeat. Go as low into the squat as you can without letting your knees move past your toes. Be sure to tuck you tailbone under and contract your glutes. Keep your torso tall and don't let your knees creep past your toes. The plie squat targets your inner and outer thighs, hamstrings, quads, and glutes. Keep up the plies for 1 minute. After about 40 seconds, pulse at the bottom of the squat for 20 seconds.