Although your cat might use your hands or furniture for these activities, declawing is NOT the answer. Declawing is a painful and difficult operation. It is the same as removing the first joint on all your fingers. It impairs the cat's balance and causes weakness from muscular disuse.
Declawed cats are defenseless.
Cats need their claws for protection. You may know that your indoor cat will never have to climb a tree in order to escape their neighbor's chihuahua, but your cat doesn't know it. Declawing makes a cat feel insecure and defenseless. It is radical to cut off so many parts of the body to prevent such a simple behavior problem. In addition, declawing destroys on of the cat's most enjoyable activities - climbing.