I'm selling 2 x $10 gift certificates at eBay's Half.com. It can be used on everything there, and doesn't expire until a year later, I got these as a gift the other day but don't need em. So if you're interested, I'll sell both to whoever is interested for $16 - only via PayPal please (save $4!! ).
I'll update the auction once someone gets this. Just PM/e-mail IM me if you're interested.