Nature's Miracle, an enzyme product, works wonders on cat pee. (See previous thread.) I'm off to replenish my supply today since one of the little ferals (all of the cats live in the house -- but the still feral after 2 years despite living in the house little girls won't be allowed to go outside until they're spayed) peed on the couch. And Tom has invited a stranger (musician) to sleep on that couch next Friday. (It's okay -- the guest room bed is available and I'll steer her to that after I put the piles of stuff on top of it away and vacuum the room.)Linn