Or in a box, or under the bed, or on a corner of the desk. Don't try to pretend you don't have a pile of miscellaneous papers. Shred it. Shred it all. Scan anything you'll actually need to use again.
Link to this | This doesn't fucking apply to me
Don't even think about organising it; you're not the Library of Congress. The aim is to have less paper, not an equal amount of better-arranged paper.