$15 off PlayStation 3 Controllers ($39.99)

Retailer: Amazon

Platforms: PlayStation 3

Link: http://amzn.to/XrDVpL 

Sony's promise of games on the PS3 using the PlayStation Vita's cross-control functionality hasn't quite turned into a reality yet and so, if you're anything like me, having a spare wireless controller kicking around is always a good thing. Plus, who really wants to use their $300 handheld system to play on a TV anyway?