My one cat has soggy noodles for brains and has decided after nearly seven years that she's going to start scratching on the corners of our couch. She hasn't done any real damage yet, but she's caught in the act and ran off at least once per day. To make it worse, her cat tree (complete with multiple scratching posts) is in front of the window between the two couches, and 2/3 of the time she chooses those.
The couches are old at this point and covered in stains (they've survived nearly five years of parenthood), so they're not of significant value to us, but we would like to buy a new livingroom set. I don't know how to break this cat of her noodle-brained choices before doing so. Spray bottle doesn't do much good, as the noodles don't store enough memory to ever connect her actions to her consequence, and de-clawing is extremely cruel and not something we're open to.