Parkinson’s law, but for stuff.
Parkinson’s law says that work expands to fill the time allocated to it.
I’ve found something similar with “stuff” at home.
If we get more shelves or cupboards, they get filled.
We moved a few things around last week and opened up some floor space…now it’s my daughters favourite location to play with puzzles.
I’m not saying it always has to be this way, and you can certainly need more space, but it seems like we’ll probably fill however much space we have.