I think there's a rule of physics that says stuff will expand to fill whatever space is available.
Do you remember the children's story/fable about the man whose wife complained that their house was too small. He went to a sage who advised, 'Bring the goat into the house.' So to cut to the chase, the man stuffed the house full of various creatures, and when he finally emptied it out again, his wife was happy.
(Btw, I also need a new house.)