Get 80% off at Restaurant.com with code CHEER.  In addition, you get an addition $10 certificate as a bonus.  Here is a screenshot for your reference.  They sell $25 gift certificates for $10 each.  After 80% off, a $25 gift certificate can now be purchased for $2.  With the bonus $10 certificate, you are getting $35 worth of certificate for $2.  Be sure to read the rules and fine print of the certificates.