To restore dry erase boards that are hard to erase: spray a clean board with WD-40, wipe dry with paper towels. The WD-40 fills in the dried pores of the board that hold in marker ink, making it easier to erase.
1. Clear out your bookshelf and lay it flat on its back. 2. Measure the space between the shelves and cut your wallpaper to size using a utility knife and metal ruler as your guide. 3. Apply an even layer of spray adhesive to the back side of your wallpaper and press firmly to the back of the shelf.