I think excercise is a great way to release anger. Whatever situation you find yourself in that makes you really angry, you must try really hard to remove yourself from that situation before it escalates and gets out of hand and you do something you will regret. I know it is hard when you are faced with the situation, but just try really hard to walk away and get out of the house etc, go for a run or brisk walk, even talk out loud whilst running or walking to get it off your chest!!! Sounds daft but it can really help!