Learning to Sketch with Color

I have always wanted to sketch with water color and thought it was a crazy idea. Most water color techniques seems so laborious.  As I have watched the quick draw McDraw sketchers around me on our weekly jaunts I have begun to take a new approach with a quickish water color sketch.  I can't seem to loosen up and quick draw but if I start splashing color around I feel a bit more freedom...maybe too much ;)