Membership Card

[Copendub]

A membership card for customers. Gives the customer some kind of benefit for having it, but it costs daily for having it so your store gets passive income from customers having a membership card. If customer is repeatedly unsatisfied they cancel there membership card. You could also use this membership to track customer buying habits. Maybe even implement other uses for the membership as well. Like set certain days members get a discount if you want to get more traffic in the store.