I have to admit that I am not too good at keeping my kitties off the counters, etc.
But.....I do have a really nice antique chair that I do not want them on or messing with. What works for that is something I ordered from R.C. Steele called a 'Scraminal'! It looks like a little remote, (ultrasonic beam) and works great! I think you can buy them at Petsmart too.