Just figured out how to stop the cat (temporary solution) from scratching furniture. I blast them with canned air when they scratch my box springs and mattress. Runs them off.
By samazf 
I think this is a great idea too! I saw on the TV the can of compressed air being used to deter their cat from scratching. The only difference was that there was a motion sensor with the can so that it doesn't need monitoring. Brilliant!