True Story:
I worked with a woman whose car was COMPLETELY filled with crap. I mean paper, magazines, coat hangers, boxes. Every square inch. There was a person shape hole in the drivers seat that you could wedge a person in to. It was abaove the rear window! I can't even do it justice describing it. The car (a late 90's lumina?) squatted to the ground.
I am certain her house is the same. Very very odd. I am exactly the opposite. I throw out too much, I sell anything I no longer use to free up funds for things I need. My house looks like we just moved in because it is kind of sparse with no nick nacks.