If you want to add intensity to your usual triceps dips (and, really, who would blame you?), you'll really enjoy dips with a leg extension...or, as many of my clients call it, "Are You Crazy?"
Tacking on a leg extension to an already tough exercise not only adds to the work of each arm, it targets the quads and the core as well.
Do it right: Sit on a step or chair, hands next to thighs, knees bent. Push off the step and bend the elbows into a dip. As you press up, extend the right leg, reaching for the toe with your left hand. Lower and repeat on the other side, alternating sides for 1-3 sets of 8-16 reps. Enjoy the burn!