I saw some DIY tutorials recommending to use tileboard to make a cheap whiteboard.
I had a piece lying around, and tried some dry-erase markers on it.
Turns out they don't erase well at all when dry, and I had to use a window cleaning spray to get it off completely.
Do you know of another cheap material that would allow to more easily clean those dry-erase markers off ?
Edit : I intend to make it large, so the lighter, the better !