I run.
Running cures everything.
Long, slow, distance - 5, 8, 12 miles at a time. Nothing like spending 1.5 to 2.5 hours of quiet, solitary bliss. I can actually feel all the evil leaving my body - sweat drop by sweat drop...
and if that don't work, I drink lots of beer (which is an indicated treatment for post run recovery drink, I might add)