My spaces are packed that but my wife won't let me have a lot of rooms. She likes the place to look nice.
I do have a garage, 2 sheds and my computer room in the house.
I do try to store things methodically tho. I have shelves, bins and cabinets, somewhat sorted and boxed. My ex was a "throw it in a corner and stack it along the wall when the corners are all full" person. The last time I was in my old house every room was packed with paths through the middle.
She then married a guy with a house full of stuff he wouldn't part with.
