Everything I know about customer service I learned from working at McDonalds as a teenager. Hard to believe, but true! In this day of highly competitive cyber business, the companies that will succeed will be those that offer superior customer service. The value of a lifetime customer is immeasurable. So once you get a customer, how do you keep him? The answer is killer customer service! Here are some of the secrets that have made McDonalds the success it is today!