Rent a classic comedy film, or tune in to "Nick at Nite" or the Comedy Channel. Rent a tape of your favorite comedian. Read some of those Internet joke lists that you've been archiving to "read later." Dig out your old "Far Side" cartoon collections. Clip a cartoon and post it on the refrigerator or fax it to a friend, to double the effect.
You may want to crack up with Loretta LaRoche, humor consultant and self-described "Queen of Stress," who promotes "Exaggeration Therapy" and an interactive "Tadah Club," among many other stress-busting techniques. If you tend toward "the dark side," consider pasting Loretta LaRoche's Ten Little Commitments on your refrigerator door.
The meditative practice of sound bathing dates back to ancient times but it is gaining popularity the U.S. HowStuffWorks looks at sound bathing.