80% off coupon for restaurant gift certificates
A $25 cert is usually $10 through Restaurant.com, so this means each one is just $2. That's a lot of savings.
Note, if you've never bought a cert at Restaurant.com keep in mind that the redemption rules usually require you to make a minimum purchase of $35 or $50 per certificate. Alcohol, tax, and tip are excluded from the total. Just make sure you read the fine print and you'll be fine.
Buying a Restaurant.com certificate supports WalletPop.