Marcus Lemonis from the CNBC show The Profit has a checklist for would-be business owners—a few questions that you should ask yourself before you embark on launching a business—or ask people to invest in it. Would you buy what you’re selling? Do you have the skills or connections to make this product or business a reality? What do your friends and family think of your idea? Do you have money of your own that you are willing and able to invest in your idea? One more thing: You need a 30-second pitch for potential investors that shows you have thought through every angle of your idea.