Washington Improv Theater's annual holiday extravaganza features shows based on audience suggestions, showing you the good, the bad and the ugly of the season -- all laughs to get you through this crazy month. Each and every show is different, but all offer a grab bag of spontaneous ho-ho-ho-inducing comedy. Weekends through Jan. 1. At the Source Theater, 1835 14th St. NW. Tickets $12. Call 202-204-777- or visit washingtonimprovtheater.com for details.