A few years ago I got Carla Sonheim's Drawing Lab for Mixed Media Artists and became fixated on one of the exercises where you randomly slap water color onto the paper and then look for the animal or face or whatever that's in the paint. You then use a pen to draw in the details.
I realize now that the exercise helped solidify in me that more "intuitive" sense I use to make art. Some people know what they are going to create and start right away. For me, it's more of a "finding what the piece is going to be" kind of thing. Another way in which I'm an "accidental artist."