Filing your dream for sanding disc knives, scissors, etc. portends a lot of things that you will not have time to make one. Sandpaper to grind down some surface means that in reality encounter unforeseen circumstances that would prevent the implementation of your plans. If something polish emery - so clearly set yourself a goal and achieve it, whatever it may cost you. Scrub with fine sandpaper bloated Subsidiaries dishes - go on about the other.