I liked the roadmap on the OA's page. Others have mentioned the stick-on dry wipe vinyl whiteboards that are available. For walls there is also 'magic whiteboa

I liked the roadmap on the OA's page. Others have mentioned the stick-on dry wipe vinyl whiteboards that are available. For walls there is also 'magic whiteboard' - a roll of plastic material that sticks to the wall using static electricity. I'd mention the 'mini-whiteboards' sold for use in classrooms - usually A4/Letter size. These are about 2mm thick and can be used as clipboards as well with a suitable bulldog clip. My final idea would be to get a map case like the one that hikers use to keep their maps dry and put completed whiteboards in that for reference. Personally, I prefer paper/pen &c