This deal has ended.
Take 50% off dining certificates at Restaurant.com via code CINCO in honor of Cinco de Mayo through 5/3. This drops the price of a $25 gift certificate, which sells for $10 to $5. Choose from over 18,000 restaurants, and search by area. Most exclusions were recently lifted, but still make sure that you read the fine print as some restaurants may have their own exclusions or spend minimums.