Sure, counting to 10 and going for a walk are great, but they arent for everyone. One thing that you are probably familiar with is the idea of writing a nasty-gram.
I often get peeved when I am in the car. And if I am alone, I have my own permission to scream a string of nastiness at the other person. I'm the only one who hears it, and I feel better at the end. The idea of counting to 10 just sort of encourages bottling up feelings.
If the slight is momentary, then I would consider just writing/typing that nasty email and then posting it to a blog somewhere. It will help you get the frustration out.
Another great option is to do the exact opposite, i.e. kill them with kindness. Whenever I get frustrated in a professional setting, I typically find myself becoming increasingly polite and formal. By doing this, especially when you are in a fight with someone, you will just aggravate them more. I've sent more people into tailspins that way.
One final idea is to remove yourself from situations that stress you out and make you angry. For example, if you hate what you are doing (an activity, job, etc.) you might find a way to stop doing it. Removing the stress this way might make you less angry.
Its just what I do; and grats on the goal. Its a tough one but it will really make a difference all around.
























