A tip for keeping pets off furniture: place aluminum foil or bubble wrap on seats. Most dogs and cats do not like the sound or feeling of these materials.

Cover the inappropriate objects with something your cat will find unappealing... aluminum foil.

I bought 2 blankets a few days ago... Works as advertised - the dogs have not made a move for the couch since I put them on. I just ordered another as my sectional couch was a little too big for only 2 blankets.