Classic exercises never lose their efficacy, but doing the same old moves every time gets tiring (and boring!). Wake up your routine with these fresh ideas.
If you're already doing: Squats
Try: Heel-click plies. "They're quick, tiny movements, but they sculpt killer curves," says Kacy Duke, a New York City trainer.
How to do them: Stand with your legs shoulder-width apart and your feet turned out. Clasp hands in front of chest with arms straight out. Bend at the knees, then spring off the floor. Extend legs and quickly click heels together before landing in your starting position.
If you're already doing: Tricep dips
Try: Chair extensions, which "work your core and upper arms," says Kathy Kaehler, a trainer in Los Angeles.
How to do them: Sitting in a straight-back chair, hold on to the front lip and scoot your tush forward until it's just off the seat. Stretch your right arm and left leg straight out in front of you. Hold for 20 seconds, then alternate to your left arm and right leg.
If you're already doing: Crunches
Try: Two-part curls. "Unlike crunches, these activate your lower abs, too," says Kaehler.
How to do them: Get in a crunch position. Lift legs to a 90-degree angle (shown below). With your hands behind your head, raise your upper body toward your thighs for one crunch. Then bring your torso back down to the mat. Extend your legs up to the ceiling and lift your hips off the floor.
If you're already doing: Push-ups
Try: Dumbbell dips. "They tone the area between your chest and shoulders, where extra weight swells over strapless dresses," says Duke.
How to do to them: Hold a set of 8-lb weights, which helps to isolate muscles, and get into plank position. Keeping elbows close to your body, lower down and push up using your triceps.
If you're already doing: Lunges
Try: Backstep squeezes. "To get firmer glutes and legs, nothing beats them," Duke says.
How to do them: Standing with an 8-lb dumbbell in each hand, step back with your left leg. Bend your right knee down until the thigh is parallel to the floor. Lean forward at the hips with your back straight, and lower the weights to either side of your right foot. Squeeze your glutes, and raise up to starting position. Switch legs.