As people who like to loiter in coffee shops most likely know, you can get refills of brewed coffee or tea at Starbucks for only fifty cents, and the refills are free once you’ve bought five drinks with the shop’s payment app or a registered gift card. What you may not know, though, is that your first drink doesn’t need to be a plain brewed coffee: it can be a fancy espresso-based concoction. [More]