Many years ago I bought all of the wool clothing that I could find - much easier then, than now, at our local Goodwill - now gone. My mother-in-law showed me how to make a hooked rug out of the wool. I just cut it up into strips and "hooked" it into a burlap, canvas type of material. Just cut around the bad places. Did not think to wash the garments first back then. She was the "queen" of recycling - making many hooked rugs out of her family's old wool suits, coats. Mostly dark and drab colors. Wish that I still had the one that I made but had it out in the garage in a storage room and the mice used it for a nest.