Worried about fitting into those summer skirts? Here's a move that will give you a trim, toned waistline — oblique crunches!

Here's how: Lie on your back with your spine pressed firmly against the floor — no arching. Contract your abdominals and lift your head and shoulders about 6 inches off the floor. Twist slightly to the side, reaching your hands outside of your right thigh. Keep your shoulders off the floor, holding the reach, and pulse for two sets of eight to 12 reps. Keep the entire movement slow and controlled. Don't bounce. Rest 15 seconds. Switch to the left side and repeat. Measure your waist and write it down, so you'll be able to see how far you've come after just a few weeks!

Food isn't the enemy; sitting still is.