Shoulder dislocates are a superb drill to open up the chest and create supple shoulders. You will need a dowel (wooden rod) or resistance band to perform this one. Grab hold of a dowel or band in front of your body. Slowly raise the dowel/band up overhead and down behind your body. Return along the same path. The wider grip you have, the easier the exercise. Therefore to increase the difficulty of the movement over-time, steadily adopt a narrower grip on the dowel. If you do not have a dowel, you can use a resistance band. In fact for those of you who are very tight in the shoulders/chest a resistance band is probably the best place to start (pictured) as you can stretch the band as much as you need to complete the movement.