That's a cool little map. I always have stacks of used paper (stuff printed on one side - flip over and use blank side) that I use to write down ideas, draw rough maps, doodle strange little creatures/character/weird designs, and so on. Often I do all of the above on the same piece of paper. No matter what room I'm in, I usually have a small stack on a clip board so I can brainstorm and jot down ideas (especially if I'm sitting in front of the TV). Once I finish reusing the paper, then it gets recycled.