<human>:  What is the best way to clean a wool rug?
<bot>: The best way to clean a wool rug is to vacuum it regularly, spot clean it with a mild detergent, and shampoo it every six months or so. Be careful not to use too much water when shampooing; this can cause the fibers to weaken and the rug to become misshapen. To prevent fading or discoloration, it is also best to limit exposure to direct sunlight.