I clean everything furiously, create really wild, loose art and then destroy it, and when I have enough composure, I try to find my mini mentor for calming effect.
I often sing, and watch youtube. Or sing and play video games. Recently, I've been looking into Vulcan Meditation, (Star Trek thing)
Music is my stress reliever really. I can put headphones on and shut out the world. It's a lovely way to spend time alone.