Another important body part and sometimes over worked or over stressed are your shoulders.
They are being worked all the time in back workouts, arm work outs, chest workouts and even when you squat they are under stress, so by working your rear and medial delts more often you will strengthen around your shoulders and they will be less prone to injury and will also be stronger for benching.
While standing with your feet not quite shoulder width apart and your knees slightly bent holding a pair of dumbbells to your side.
Bend over from your waste keeping your back in its natural position and parallel with the floor.
With your arms bent slightly begin to raise the dumbbells up to the side of you like doing a reverse fly.
Now squeeze your rear delts at the top of the movement and slowly return resisting all the way.