The link below is to a site called living social, a site with daily deals - todays deal is great if you shop on amazon at all (which I do all the time lately - I even just bought Ragu Sauce there!!) Anyway, you can buy a $20 gift card for $10, today only. (I am only sorry that it's one per customer) You can sign up on amazon for 3 months of free shipping by signing up to be an amazon mom too.
Gift card link
Amazon mom link: