Take some standard rubbing alcohol and apply it to the stain in question. Using a soft cloth gently apply pressure. With circular motion begin to remove the stain.
Remove permanent marker off a fabric couch with toothpaste and peroxide. The magic ingredient in the toothpaste is Borax. Scrub it with the toothpaste, then the peroxide.
Your best bet is rubbing alcohol, and a soft cloth. Keep reapplying alcohol; it will slowly break down the ink. Rub in circular motions using new parts of the cloth.