Launching a business requires much more than a great idea – it requires discipline, time, dedication, and perhaps most of all, money. And despite the way that the term “angel investor” gets thrown around, it is pretty unlikely that you’re going to just get a major windfall of cash from a generous individual who’s just dying to back your somewhat nebulous idea. It’s more likely you’ll need to go through the three major stages of growing a business through funds of a variety of sources.