You can pee with the bathroom door open, walk around naked, eat when you want, sleep when you want, have people round when you want, make a mess, tidy when you feel like it, work from home, decorate how you want etc etc. But it does eventually get dull, and lonely after a year or so. Still worth doing though. I now look forward to my boyfriend moving in in September, and know that there may be some friction, because you can get set in your ways, and some things will need to be altered a little.