I love combo strength-training moves that target more than one part of the body, and I also love quick moves I can throw in throughout my day, even when I'm not at the gym. This balancing booty- and thigh-toning exercise can be done while blow-drying your hair, waiting for the bus, or talking on the phone.

For detailed instructions, continue reading.

• Stand with both feet together. Clasp your hands in a fist in front of your chest, or if you want more of a challenge, hold a dumbbell on top of each shoulder. Put all your weight into your left foot and bend your knees slightly. Lift your right foot off the floor an inch, keeping it flexed. This is the start position. Lift your right leg out to side, doing a side leg lift. Then lower it so it's parallel with your left leg.
• Then bend your right knee, bringing your right shin so it's parallel with the floor. Bend your left knee and do a balancing squat.
• Come back to the start position and complete three sets of 12 to 15 side leg squats on each side.

Working your legs one at a time is a great way to challenge your core and sense of balance. Plus, single-leg moves help even out strength discrepancies between right and left.