My 6 year old tabby scratched up the old carpet on our stairs and we finally had to get new carpet. Now he's scratching up the new carpet. He won't use a scratch pad (one of those long, cardboard-like things with the cat toy on a spring at the end) and we do keep his nails trimmed like we're supposed to. He doesn't scratch on furniture yet but we feel like it's only a matter of time. How can we stop him from causing so much damage with this scratching???? HELP!!!