23. Use Sneaker to Clean Sandpaper
An electric sander can get dirty very quickly. If you want to save money on buying new sandpaper, start cleaning the one you had used. All everything you need is an old pair of sneakers that you don't wear anymore. Press the blade of the electric sanding machine against the rubber sole, and you could see it starting to become cleaner. You will wonder why you never thought about it earlier.
