Most coffee cups already do have ads on them. They have you paying $5 for coffee, AND running around with free ads for them in your hands. And you don't even

Most coffee cups already do have ads on them. They have you paying $5 for coffee, AND running around with free ads for them in your hands. And you don't even notice you're a walking billboard for them! Not to mention all that juicy data you're giving them with every CC purchase, or loyalty card swipe...