I shop at a LQS that issues a card with 10 or 12 spaces. Each time you buy full priced merchandise, that amount is recorded on the card you carry in your purse. When all spaces are full they total it up and you get 10% in 'free merchandise'. The plan has no attraction for me. I go for the sale merchandise and know I am money ahead. You don't have to buy the card and you don't have 'to play the game'. On the other hand, I do play the grocery store loyalty game. And, when it is time to redeem the gas rewards of up to $1.00 we fill up our diesel truck-not our little Subaru because it is a one time fill-up up to 25 gallons. The truck holds 35 gallons and the car holds 12. That is worth a lot of money in a year.