Can't remember the last time your belly ached from laughing? Today's deal from the Joke Joint Comedy Club should jog your memory. For just $15, take a date to this Sibley Memorial Highway locale, take a seat, and prepare to engage your ab muscles. Check the calendar for upcoming acts; the intimate setting ensures that there are no bad seats in the house -- and the parking is plentiful and free. Our advice? Come to either of the early shows Friday or Saturday nights, get into the late show for free, and find out why laughter really is the best medicine.