My drink of choice is a tall iced caramel macchiato, nonfat of course. And now, for the seemingly reasonable price of $4.95 (just for the sauce), I can bring the caramel home with me!? Incredible! This has to go on my birthday and/or Christmas list.
If you don't care for coffee drinks, my cousin came up with a tasty tea concoction at Starbucks. She orders an iced Passion Tea flavored with raspberry syrup. It's very refreshing on a smoking hot day. It's also pretty cheap!