One-Legged Dead Lift
for hamstrings, butt, abs, lower back
Stand holding a dumbbell in each hand, palms facing in. Step your left foot back so your toes are just touching the floor. Tilt forward at your hips so the weights hang toward the floor, with your back parallel to the floor and left foot raised to hip height; return to starting position. Do 10 reps, then switch sides and repeat.