From 5/18/17 to 5/24/17 you can earn 2x points when you purchase any Mastercard gift cards at Stop & Shop (or Giant and Martin’s). You have to present your store card when purchasing the gift cards and also when redeeming your points at the gas station. I posted this earlier in the week, but the deal is now live. Head to your local stores to grab them before they go out of stock.
See more details on my original post.