It never crashes, it's flexible, requires no power and is stable over several centuries ... yes, it's that old communications stalwart, paper! Most designers still break out a sketchpad on a regular basis, and according to this BBC article, there's a movement afoot amongst even the most digitally literate to keep their pads, pens and pencils in regular use. However, at the same time, PC designers are making it easier than ever to sketch intuitively on screen.