I went to the gravel pit, where they crush rocks into gravel, and got, what they call a "worn out" conveyor belt. I got about 100' for free. I have runners along all of my pathways in the shop. I also keep all of the large cardboard boxes, like washers, dryers, refers, etc. come in. I flatten them out over the remaining floor. It is amazing what a couple of layers of cardboard will do. I used to worry about them catching fire but if a piece of hot metal jumps out of the tongs I just reach over and pick it up and have a small scorched area. Never have seen any flame. Then, too, if I spill oil on the cardboard while changing the oil on the truck the cardboard, not the concrete, catches it. This area is not in the immediate area of the anvil.