Cat keeps popping on rugs?

well you don't want to put Any rug there, but you could get "Pee 'n' Poop" mats so your cat will be comfortable using the rest room. also you could get an "open" litter box, with no roof, and try to train your cat to be comfortable And regular using the bathroom. try to use the kind of litter your cat First got comfortable going to the bathroom with, it might help. when i first got my cat Holly we had to put her on the litter six time for her to actually go. don't try to push your cat on it, let them do it.