Thanks for sharing this idea with us. I guess it sometimes pays to save things..My DH is still looking for a tool he always used to sharpen the lawnmower blades at our former home. Supposed to be in some kind of brown bag; I had wanted him to sharpen my garden tools..Hadn't found it yet. Well, guess what July is going to be for cleaning out the garage. It's there I'm sure, as he never throws out anything that he "used to use" all the time..even though we don't have to mow our lawns now. I told him he gave the self propeled lawn mower to our daughter, maybe he gave that filing tool to her too.