I feel compelled to sketch all the time in order to keep up my ability to quickly transfer a mental scene to paper or PADD. I know that sooner or later (preferably sooner) I will want to call upon one of my many sketches and doodles for inspiration on a professional illustration. Naturally, the more original my sketches are to me the stronger I feel my work becomes!
An added challenge to encouragement for you this week and next is to make that attempt at filling up a sketchbook - even if it's assembled from scraps of paper you've gathered from around the house. Become a sketchbooker. Sketch your future!