Not giving your cat enough litter boxes
First of all, cats are one of the cleanest animals, which means they love to have a clean space to manifest themselves. So, many cat owners do not have enough litter boxes or do not change often the litter and this is a bad idea in terms of their growth.
According to veterinarians, you should have a litter box for every cat you have plus an additional one. If your cat doesn’t have where to do its needs, then it will find other places, such as your furniture or other personal things.
Nevertheless, try to keep in mind that once your cat will have a bad bathroom habit, it will be impossible to change its behavior again.
So, all you have to do is to prepare multiple litter boxes for your cats and to clean them regularly, so that they will have a better life.