I’ve learnt that even though you have a great plan and even once executed, it may still need to be optimized to nudge out a few kinks here and there. What better way to do that then to have proper and actually factual data of your plan in motion. For example, those who set up departmental stores, shops and such places of purchase could employ secret shopping solutions whereby a mystery shopper would go about purchasing items and then, feeding you back information that could help you improve your system for better customer value. In return, such an investment would most probably return a yield of returns.