If you have a fantastic idea for a product but no idea how to make it, don't worry - you're not alone. Thousands of entrepreneurs face the same challenge every day. But that doesn't mean you can't sell your product! This step-by-step guide will teach you how to sell something you have no idea how to create. Let's get started! Figure out what you're selling. The first step is to figure out precisely what you are selling. What is your product? What does it do? How does it work?