Go watch Mike Monteiro's "F*ck you. Pay me."
You should watch this video now of Mike Monteiro at Creative Mornings. In fact, I shouldn't even have to say anything else - although I will. If you have a consulting business, be that design, development, a hybrid or something else, you should watch this video.
Mike Monteiro ( @mike_ftw) of Mule Design talks about some of the issues designers come across when working with clients, and how you can protect yourselves from being fooled. Chances are you need this advice at some point in your life, so get it now.