Down to a single storage box with suspension files, easy to store and move if need be. End result of a lot of document scanning (stored in Evernote) and a lot of shredding of other material.
Now easy to find manuals is they are needed and everything available in one place. All legal documents retained but digital copies also stored in Evernote should the worst happen.
Recommended, much better for one's state of mind than a load of clutter.