This deal has ended.
Get $25 dining certificates for as low as $4 at Restaurant.com via code SPRING through 4/10. The price of a $15 gift certificate, which is normally $10, drops $2. Not all restaurants participate, but there is a wide selection (18,000+) to choose from. Of note, most exclusions (like most weekends, holidays) were recently lifted, but as always, make sure that you read the fine print.