The most interesting, creative people I know express themselves in a variety of ways. I used to do it myself.
I can still remember the satisfaction I took from dragging a crayon against a particularly toothy piece of paper in a coloring book when I was very young. Unlike the cliché, I was trying to stay in the lines, but even then, it was the creation process that gave me the most pleasure, not the results. A year or so later, I began to draw freehand, and from that point on no blank page, post-it note, page margin, envelope, or napkin was safe.