Starbucks Doubleshot

At Trudy's Convenience Store, a 6.5 oz can of doubleshot costs 2.99, or 1 swipe (each swipe is worth about $2.30). A 15 oz can costs 3.49, or 2 swipes. They're just BEGGING us to buy the larger cans. More than double the size for just 1/6 more than the smaller can's price? Deal! While the swipe thing isn't worth it, the reg price is a steal.