Scribble. Sketch. Erase. Repeat.
Different for all artists (I'm finally coming to grips with calling myself this), process is import and central to their work. For me, I found that my sketches are insanely important to reach the finished illustration that I'm after. My sketches are such a roadmap for me. Here are a few examples of some scribbles before "going to color".
(Click on an image below to open a sample.)