Medical-school students often intern at comedy clubs, learning the healing art of laughter and stitching up audience members' sides that split from hearty guffawing. Score a dose of chortle medicine with today's Groupon: for $22, you get two tickets to Catch A Rising Star Comedy Club, located at the Hyatt Regency in Princeton (up to a $50 value with fees and taxes included).

Known for helping launch the careers of Jerry Seinfeld, Robin Williams, Ray Romano, and others, Catch A Rising Star Comedy Club offers chuckle enthusiasts a plethora of emerging mirth-masters in its spacious showroom. Snag a seat at an intimate table with your closest friend and let laughter experts tickle your funny bone or droll circulatory system. Performances are held on the weekends, and tickets vary in price depending on the day, running up to $25 per person. Though those under age 18 have the ability to produce audible expressions of amusement, only those 18 or older are permitted to enter and laugh within the premises.