Who says there's no such thing as free coffee?

At least one, if not more, BP's are doing Free Coffee Wednesdays. I saw it last week but thought it was a one time thing, but I got a big coffee today and didn't have to pay for it. I'm not sure how long this lasts or what other stations have it, but at least the one on 38th/High School does. I'm not a huge fan of their selection, but here's what I get there: 1/4 Hot Chocolate, 1/4 English Toffee Cappuccino, 1/2 Decaf.