I have a guy who just recently figured out this system. It's like it's a big secret that he's so proud of discovering, and there's a tone to his voice like he's trying to make me feel bad for not telling him about it sooner.
I'm like...why would I tell you about something that slows my line down that much more? That's great that you're getting a free drink EVERY WEEK, but for God's sake, you get a TRIPLE ESPRESSO. wtf, man.
I at least used to be nice about it, before I worked here again. I'd go to the store, buy my drink...sit and work on my lappy for awhile (graphicdesignhomeworkohGodtherewassomuchofit), then go back and buy my cupcake or whatever. And then, before I left, I'd get tea or something for the road. Three stars, one visit, not being an a@sshole. I mean, I knew from the beginning that I was getting that cupcake, but I'd wait to get the stars later.
Or I didn't want to seem like a cheapskate who needed my card swiped a few times in one transaction. One of the two.