I got Chappelle's Show Season One for free by using food stamps!
I know what you're thinking, you can't use foodstamps on things other than food. But I had a coupon that was spend $100, save $20. The DVD was $20 at Fred Meyer (Kroger) so I used $80 on food using foodstamps, picked up Season 1, and the $20 that would have been cash got wiped clean. Badass.