Participating in the McCallum Grocery Card Program as an EASY way to support your school! Your participation in the Grocery Card Program is a win-win for everyone. You get gift cards to use at HEB/Central Market. McCallum PTSA earns a 3% – 5% profit on your order. Please click here to retrieve the order form, return it to the office by September 15th with payment, and receive your cards at the beginning of October. You can order cards every month to support the PTSA!