When you work, it's important to be organized. You don't want to spend time looking for an eraser or a particular pen. There’s nothing more frustrating than forgetting an idea while looking for a damn pencil. What could be better than a brume to keep your desk clean? To draw design concepts, I use those fat markers called TRIA and I have a lot of different colors. This little trick keeps them close and visible at all time while I'm sketching.
Keep the wooden stick for later... we'll find something to do with it.