Before you use online coupons to increase business, be aware. There are legal, marketing, and financial issues that can jump up and bite you. There are also implications for communities where they are used as well as for those in the same industry who don't use coupons.
Jan - 2/3 use their loyalty, frequent shopper card at least weekly; 85% use it at least monthly; can be costly – maintenance and marketing 5-30 Million; 50% of retailers offer loyalty programs.65% of shoppers consider frequent shopper programs important in their decision to buy http://www.santella.com/index.html