Allan Katzis an American writer, producer, actor, and director... (wikipedia)
One marketing mistake many retailers make is not doing anything to recognize their best customers. One of the best things you can do to create loyalty is to reward customers for shopping with you.
It can cost 10 times more for a retailer to get a new customer than to get more business from existing customers.
Retailers who haven't already invested in a POS system think they are too expensive.
Most retailers are busy putting out fires all day. They have to spend their time working in their business, rather than on their business.