Here's a great workout idea for your hips, core, and triceps - it's called the "Hip Hinge."
Hip Hinge How-To:
1. Place the dumbbell in your right hand. Stand with left leg ahead of the right leg.
2. Rest your weight on your left leg, placing your left hand on left thigh for support.
3. Lean forward from your hips. Extend your right leg completely straight backward, forming a "T" shape with your body.
4. Hold for 1 second, then return slowly to starting position.
Repeat 8-12 reps, then switch sides.
>> After 6 months, in step 4, return your right leg to a position that is crossed behind your left leg.
>> After 9 months, in step 2, place your left hand on your hip - instead of thigh - for support.
(Tip courtesy of Health Magazine 2007)