$25 Certificate for $1.00 or $10 Certificate for $0.40

Get 90% off at with code WOW.  Here is a screenshot for your reference.  They sell many $25 gift certificates for $10 each.  After 90% off, a $25 gift certificate can now be purchased for $1.00.  There are also $10 certificates for some restaurants at just $4, making them $0.40 each after the same coupon code.  Be sure to read the rules and fine print of the certificates as each restaurant is different.