Many supermarkets have loyalty cards that reward shoppers with discounts on future purchases. Price Chopper
and other chains, though, have started giving their regular customers discounted gas at participating stations. The discount varies by program, but customers typically receive a 20-cent-per-gallon reduction for spending $200 on groceries. With the national average cost of a gallon of gas currently at $3.23, a 16-gallon tank of gas costs $51.68. Knocking 20 cents off each gallon drops the cost to $48.48.