Restaurants.com currently has gift certificates 80% off with code SAVE. That means that a $25 gift certificate is only $2! Make sure that you read all of the terms and conditions for each offer. Some require a minimum purchase or a specific day to use the certificate.
For example, The Melting Pot has a $25 gift certificate available for my area for $2. The Terms are “Valid towards Big Night Out for 2. Valid Sun-Thur. 18% Gratuity added prior to discount. Excludes: Holidays/Special Events. One certificate per party.” Now I know that the Big Night Out menu will cost more than $25. So think of the gift certificate as a coupon for $25 off your order. (or $23 since you paid $2!).
I like to use Restaurants.com when we go on vacation since I know we will be eating out. Take time to research restaurants in the area you will be visiting and then order gift certificates for extra savings!