Get 80% off at Restaurant.com with code PORTION. This coupon code is valid through 8/31. Here is a screenshot for your reference. They sell $25 gift certificates for $10 each. After 80% off, a $25 gift certificate can now be purchased for $2. There are also $10 certificates for some restaurants at just $3, making them $0.60 each after the same coupon code. Be sure to read the rules and fine print of the certificates as each restaurant is different.