At the end of each work day, once I am sitting down, I take a moment to do a little stress relief exercise.

I get in my car, make sure all doors/windows are shut, make sure the coast is clear, and I yell at the top of my lungs.

The relief is almost instant. And even if it was a good day, sometimes a good, loud yell can just help to relieve any build up tension, anxiety, or stress you may not have known you were under. Give it a try (: