If you are a visual artist you probably keep a sketchbook. I've been keeping a sketchbook since I was about 14 years old and I still have almost all the sketchbooks I filled in high school and college as well as many others I've kept through the years.
Over the years my sketchbooks tell a truer story than my journals and these days I don't even bother to keep a journal. I do, however, carry a sketchbook in my car and in my pocketbook everywhere I go.
Do you keep a sketchbook?