TwoSmiles.com (HP-run printable gift card site) is having a Valentines special in their most recent email newsletter for 15% off gift cards from Feb. 11-20. Presumably, this would be going to anyone who signed up for the newsletter previously. Not valid on Amazon, Groupon, or Starbucks gift cards, but it is valid on Toys R Us and GameStop, both of which you can then use to buy other gift cards or PSN/Live/eShop credit or games or whatever, since it's just a regular gift card.
The code appears to be unique, so you'd have to have gotten the newsletter to redeem. Just wanted to give a heads up to check to anyone who may have missed the email, though.