The art of doodling is as old as humankind. Doodles are commonly found in the margins of school notebooks drawn by students daydreaming or not interested in classroom subjects or discussions.
The word doodle was coined in the early 17th century and originally was intended to describe a fool or simpleton. All I can say if doodling is a sign of simplistic thinking then I must be the queen of doodling. Most of the images in Scissorcraft originated froom my compulsion to aimlessly doodle.
The art of doodling actually relaxes the brain, helps a person think and can improve a person's memory significantly according to a study published by Applied Cognitive Psychology. Many inventions have been thought up through idle doodling because while you mindlessly draw your subconscious brain is relaxing and thinking up all sorts of wonderful mischief and inventive mayhem.
Squigglets are my doodles that I drew over my lifespan for absolutely no apparent reason other than to avoid listening to a speaker drone on and on about reports, statistics and projections, yawn. Some are "finished" and others aren't. Give em a try and see what you can create.