I just can't stand a messy room. I can let it pile up from time to time. But eventually something kicks in and I do the whole room at once. My biggest problem is laundry. I rent-a-room so it can pile up. Sometimes its clean clothes that I don't feel like folding right away that mix in with the dirty stuff when it falls on the floor or I kinda forget it had been washed already. Not to mention, we have tile floors so dust is very noticeable.
Cool optical illusion... I heard this somewhere, I've tried it, and it works!! Is your room in shambles and you've got company at the door??? Just make your bed!! Because the bed is usually the largest thing in your room and if it is in order, it creates the impression that there is less mess.
