Wilson Harrell - a great businessman and entrepreneur had an excellent way of testing for a new product, service or idea. He called it the "well, I'll be damned test". You take your new idea and run it past at least 20 different people (none of which are related to you or friends with you), to see how they'd react. If they didn't say "well, I'll be damned" or "heck why didn't I think of that?" then you haven't got a winner. If it looks like you do have a winner, the next question to ask is "well how much would you be prepared to pay for that?", and "If you could buy it at that price would you definitely buy it or maybe buy it?", "why?", "how would you use it", "where would you want to buy it from?" "is this an idea you might be interested in investing in?", "why?". These loosely held focus groups are extremely valuable and can save you a lot of time, money and stress when thinking about bringing something new to the marketplace.