Put some muscle behind those new year's resolutions with this multipurpose move that tones and tightens your thighs, builds your biceps and whittles your waist.
- Loop an elastic resistance band around the leg of a couch or heavy chair, and grab handles in your left hand. Stand with legs hip-distance apart, far enough away from the couch so that there is tension in the band.
- Step forward with your left leg and slowly lower into a lunge position. At the same time, bend your left elbow to work your biceps.
- Slowly rise and bring your left leg back to starting position, lowering your left arm to your side.
- Repeat 15 times; switch sides. Work up to three sets of 15 on each side. For best results, do this exercise 2 to 3 days a week.