1. If you sell cupcakes, have more than three kinds of cupcakes for sale, and more than nine total in the display case. It's a cupcake store. It's not an art gallery. Fill the display case with, oh, I don't know, cupcakes.
2. If you sell cupcakes, make sure they taste like cupcakes. Hint: Cupcakes should taste like cakes, not like cardboard cups. Those are cakecups, and are totally different.