Having different rooms really helps keep the kids’ shit from permeating everywhere. We’ve got a big living room mostly open to the kitchen and dining room and I’m very lukewarm on it. I’d love to be able to serve guests without everyone being able to see the kitchen mess, or being able to watch TV without seeing the kids’ toys and kitchen mess and dining table mess. (We have maids come twice a week and it’s still impossible to get that under control.)