What do i do about my cat scratching my rug?

First, keep his nails trimmed. If you are uncomfortable doing this yourself, the technicians at your vet's office can do it for you. Cost usually ranges between $5-$15 per trim.
Second, make sure your cat has appropriate things to scratch. Ironically, a cat scratching at your things is a compliment - it means he likes your territory & is marking it as his own. When cats scratch, they are not only stretching their back & leg muscles, they are releasing a scent pheromone to mark their territory. All cats need to scratch, so make sure you've provided him with something appropriate. Many people tell me "I bought him a scratching post, but he won't touch it!" This is likely because all cats are different & they don't all like to scratch the same things. Some cats like an up-and-down scratcher - with these, you need to make sure they are tall enough for the cat to stretch up on or he won't use it. You also need to make sure the post is sturdy because if not, the cat will fear he may pull it over on himself & will not use it. Some cats like flat scratching posts, others like scratchers that are on an angle. If you cat is scratching at the carpet, it is likely he prefers a flat scratcher. Wal Mart & many pet stores carry flat cardboard scratchers for between $6-$15 each.

Place the scratcher in a central area that the cat frequents - he will not use a scratcher that is off the beaten path - who wants to make such undesirable territory? When the cat scratches on the carpet, give him a firm "No!", pick him up & put him on his scratcher. Reward him with treats & praise when you catch him using his scratcher.

Farnham makes a product called Feliway that often assists in training cats to stop scratching inappropriate items. Feliway is a spray synthesized to mimic the pheromones a cat releases when he scratches. I usually spray it every other day on the surface I want the cat to leave alone (like the carpeted stairs in my parents house) and after a few weeks of this & redirecting the cat to scratch on HIS scratcher, I usually have success. For especially tough cases, call your vet or local humane society & see if they will show you how to apply Soft Paws nail caps. These caps fit over the cats' nails & prevent him from doing any damage when he scratches. They usually need to be replaced every 2-4 months on adults cats. I have even known a cat who, after 1 year of consistent Soft Paws application, stopped scratching at furniture altogether & the owner was able to stop applying the product! Good luck training your cat - it can be done!