Costs you nothing but contributes 5% of the amount you put on the card to St. Matthias. You can still get Air Miles by showing both cards when you buy your groceries using your Smile Card. See Hazel Tremblay to get a card, then take the card to your local Thrifty Foods and load it using your credit or debit card. This is a convenient way to shop and it supports St. Matthias at the same time.