Last night I moved Popsie's litter box into the living room since he likes pooing in there. He's peed in it twice since the move and I think he likes the new spot. Hopefully he won't poo on the floor now.
More crossed fingers for you. I know how frustrating this can be. It's such a relief to come home and not need to grab the carpet cleaner. Here's hoping this works for you and Popsie.