Take 50% off dining certificates from Restaurant.com through Sunday 5/13 (Mother's Day) with coupon code MOM. The dining certificates are printable credits that you take to local restaurants. The restaurants give the credits to Restaurant.com, who then sells them for less. For example, a $25 certificate normally sells for $10 but is now only $5 with the 50% off coupon code. Obviously, not all restaurants participate, but there are more than you think. Also, receive a $15 gift certificate to online florist de la Flowers with any purchase.