Please Explain

Could somebody please explain to me how I could be totally caught up on laundry as of Friday afternoon, and then have to do four, count them--four, loads of laundry yesterday and another two today. And I have not even touched the sheets on anyone's bed. There is clearly a laundry gremlin roaming my house randomly throwing clothes into laundry baskets (or the corners of rooms). Because I find it just impossible to believe that four human beings could generate so much laundry in so little time. Even accounting for the frequent changes of clothes due to water spillage, yogurt droppage and marker mishaps.