This is one of those questions that you'll get all kinds of answers to. I know many folks who say put them in a bag and pull them out one by one. I can't do that. I need more order. So I would lay out one with 20 different blades and many a couple for the four of the same color idea and the rest different. Stand back and take a look. If one doesn't hit you immediately as the best way, sleep on it and look again the next day. Good luck.