Here's my latest cartoon. First, there is the rough sketch; here I drew it in hard pencil and came back to tighten it up with a ball point pen.

Next I draw up the finished line art in pencil on drafting vellum.  This is the image that most people will see in the newspapers.

Then I do the color version, for the newspapers that print in color and for the web.  I really wish I could do "scratch 'n sniff."