Squats (See other blog.)
Cable Adductor and Abductor Exercises (See other blog.)
Use a mat. Get on your hands and knees, with your thighs perpendicular to the floor. Keep your back straight. With your knees bent at a ninety degree angle, lift your right leg slowly up to your waist level and slowly release it back down. Do five sets of ten repetitions. Repeat with the left leg.
Do not try to do it with both legs at the same time! (joke)