There are different types of service. If your time is valuable (I.E. you have money), you want to hire someone, who already knows what you want, what you need,

There are different types of service. If your time is valuable (I.E. you have money), you want to hire someone, who already knows what you want, what you need, and how to deliver it. Now, assume you have such a product. Then, you talk to potential customers, and you tell them what you are offering. If somebody calls up, and asks for something stupid, you don't do it for them. Obviously, if somebody discovers a problem with something, you fix it. Obviously, if you realize a lot of customers need something, you probably want to add it to what you offer. The point is that you have your own quality standards. So, your customers know when they deal with you, they can expect a certain quality. If you are just desperate to do whatever your customers tell you, you will have no quality standard, and you will need to ask a million questions. People often ask for things they don't really want. You want to understand your customers better than they know themselves.