Until Monday, August 31st, go to Restaurant.com and use the code "TASTE" to get the gift certificates for 80% off. So, you can get a $25 gift certificate for $2! Make sure to read the details of each GC, because they do vary.
If you go through Ebates, Mr. Rebates, or Cashbaq you can get an extra percentage off your purchase....and if you're new to those sites, they each offer a $5 sign-up bonus! Check out this previous post about how to make this a money-maker!
(*the specific percentages they each offer may vary from that post, but follow the links and it will tell you how much they're currently offering).