This deal has ended.
Through 7/12, Restaurant.com takes 80% off all their printable dining certificates via code FUN. This lowers the price on $10 certificates, which are normally $4, to $0.80 and $25 certificates, normally $10, to just $2. Restaurant.com restocks their certificates at the beginning of the month so now is a great time to buy. Obviously, not all restaurants participate, but there is definitely a good selection to choose from. Just be careful to read the fine print as many restaurants exclude alcoholic beverages, weekends and other things.