That brings up a very important point:
Never ask for a cappuccino at Starbucks. Uggh. Not only will you likely end up with a 16 or 20 oz. monstrosity, but they'll inevitably ask you whether you want it "Wet or Dry" Starbucks seems to have a Seattle-style dry cappuccino fetish, and most Starbucks baristi don't understand that
real cappuccinos aren't at all dry, are never in a size larger than 8 oz. (5 or 6 is more appropriate, as Chundles said), and are never,
never,
never served in paper cups. If you don't end up with something like this:
... then it isn't a real cappuccino.
There. I think that takes care of that.