Take a rare 90% off dining certificates at Restaurant.com when you apply code JOY. This is their biggest and best coupon and it is likely the last time for at least six months, so now is the time to stock up. This drops the price of a $25 gift certificate, which sells for either $10 or $15, to just $1 or $1.50 and a $10 certificate, which sells for $4, to just $0.40. Not all restaurants participate, but there is a solid selection (18,000+ nationwide) to choose from. Make sure to read the fine print as each restaurant sets their own exclusions such as alcoholic beverages, weekends, and holidays.