I never leave anything that can go bad, like food, laying around. Thats horrible. But, I do have a leaning tower of clothes atm. Usually just... stuff accumulates. Art stuff, papers, new things that dont have a place yet. My bed room is the messiest, the main room is less messy. the kitchen is messy except for the floor. The bathroom is the cleanest place for no one "lives" in the bathroom. My chinchilla cages are cleaned much more often than my own home.