"What should I sell? What products are hot selling?" These are the questions most people are trying to find an answer in order for them to make the definite decision. And if we really want to know the answer to this question, our only choice is to do some research. There are all kinds of twists along the road that may lead you to think you have a high-demand idea. We must be able to understand and satisfy the need, wants and expectations of our customers on a certain product that they