I am one sketching.  If in a meeting, at church, or sitting at an airport, I will be working on something and as of late, that could be me with a stylist going at a screen.  In the last few years I have had an I-Pad and with a program called Sketchbook Pro, and with that have been diving into creating images digitally.  These images are created entirely out of my head and are largely figural.  I have found this medium an enjoyable way to experiment with ideas, thoughts, approaches and color palettes, without too much of a mess.