Through 5/9, take 70% off dining certificates at Restaurant.com via code MOM. For example, a $25 gift certificate, which sells for $10, is now only $3 and a $10 certificate, which sells for $4 is just $1.20. Restaurant.com restocks its certificates at the beginning of the month so now is a great time to buy. As a Mother's Day bonus, you will also receive a $15 gift card to online flower retailer ProFlowers. Not all restaurants participate, but there is a good selection (11,000+) to choose from. Just be sure to read the fine print, as many places exclude alcoholic beverages, weekends and other things.