Bitter apple spray, orange, lemon, pineapple peel on stairs, or bitter apple in a spray open tub of vic works a treat, get some cat nip every pet shop has it, it looks like dry mint, rub it up and down post or where you want her to scratch, when your cat is due for waking, put paws on scratching post she/he will smell it and will automatic sharpen her claws, always food or love treat when she does it, only a small amount of nip as it looses its smell, re rub daily, x I have 9 cats