You can find incredible deals and free Las Vegas discount coupons for almost any show at least at one of these sites. Of course there is also Tix4tonight that offers cheap tickets to shows on the same day, but you have to literally stay in a long line to get them, and there is no...
Groupon and BosTix are where you'll find the largest number of discount tickets for Boston theater, events, sports, shows, cruises, tours, comedy clubs.