Single Leg Glute Bridge
Lie on the floor with bent knees, as if you were going to perform sit ups. Extend your left leg and lift your butt off the floor by squeezing your glutes and raising your hips, before lowering it back to the floor again. Aim for 15 repetitions on each leg. This exercise will give your core a work out as well as your glutes.
Plank Leg Lifts
Assume the plank position, with straight arms, shoulders, elbows and wrists all in a line. Bend your left leg at the knee, to 90 degrees, at the same time as bending the right knee slightly. Now push your left foot up towards the ceiling before bringing it back down so that your left knee is level with your right knee. Repeat this 10 to 15 times then change sides. Squeeze your glutes as you lift your foot towards the ceiling, to maximize the benefit.