Just wondering it the spray method would help you at all?

You make one spray bottle with equal parts white vinegar and water. Spray that on YOUR furniture, where you do NOT want the cat. THis is diluted enough that you won't notice the smell, but the cat will.

One spray bottle is a catnip spray. Steep some catnip in boiling water for a tea, when it cools put it in a spray bottle, spray the CAT furniture with that.

Do NOT mix up your bottles, ha ha.

Maybe I already made this suggestion to you; if so, I apologize for the repeat!

Sandra