"Before slipping into your favorite jeans, try a resistance band back kick to give your bum a lift," notes Walsh. Loop a long resistance band around the sides of a chair, or the rungs of a slotted chair back. Face the chair, loop your heel into the resistance band, bend at the waist, place one hand on the chair seat and one hand on the chair back, and kick the heel backwards until your leg is extended straight behind you. Do this exercise four times, one minute at a time until you get to five minutes on each side. Your butt will immediately feel higher, rounder, and tighter."