Hrm. Okay. I'll give it a whirl.
I use exercise as one form of stress - when I'm in a stressful situation at home it's really easy just to walk away from it and do something aerobic for half an hour or whatever, I love the endorphin buzz afterwards.
I love yoga. I hated having to do nothing for the end of it, but it is seriously relaxing to only think about your breathing and how your body is feeling for an hour - we also added half an hour of meditation to the end of my Hatha class which was awesome.
Being a person who drives in NJ, I have to admit that I think music has saved very many drivers. Including me from having a heart attack at times. In rush hour, I put on some tunes and sing along... If I'm singing I can't be yelling.
My mother is a massage therapist who specializes in doing it as therapy instead of just swedish (relaxing) massages, but even shiatsu can be really relaxing just paying attention to your body and nothing else that's going on in the world.
I don't like the breathing on it's own, but stopping, making yourself breathe slower, and think about things that are making you stressed out and possible solutions works for me too.
Just my 63 cents.