Who doesn’t love building prototypes? To witness an idea come to life is a truly amazing experience. When I can finally touch and hold an actual product in my hands, I’m in heaven!But entrepreneurs need to be prudent. Building a prototype can become exceedingly time-consuming and expensive. Obsessing over the creation of a perfect prototype is not the best use of your time or energy, because no such thing exists. Prototypes are functional tools, not final products. And furthermore, licensing is a numbers game. If I were to focus on building a prototype for each of my ideas, I wouldn’t get very far.