Ink stains. Sponge with water, working from edges of stain toward the center. Only washable inks can be removed. Call a professional to remove others.
Shoe-dye stains. You're sunk. But call a professional rug-cleaner anyway—just on a dim chance.
Blood stains. Sponge fresh stains with cold water, then wash with warm suds. For old stains mix 1 tbsp. of household ammonia in % gal. of warm sudsy water and wash.
Nail polish on rugs. Pinch stained fibers in cloth dipped in nail-polish remover and wipe upward so as not to spread the stain.
Chewing gum and candle wax on rugs. Scrape off as much as possible and then treat with carbon tetrachloride.
Page 1 2 3