I have years of clutter that I keep around for that mythical "just-in-case" scenario that never happens. Even when I physically put the papers out of sight, I can FEEL them through the closet door, and it's distracting. So I'm scanning everything in and throwing out as much as I can. I'd like to know what I should keep and what I shouldn't keep. Some things like a random plane ticket stub from years ago are obvious, but some things are questionable.
For example, the scanner I bought from Amazon to do this clean-up project came with a warranty certification slip, that says the item name, and my serial number for it, and all the contact information for repairs. It clearly says on it, "save this for your records." Okay, great. But does it become void/invalid if I only have it digitally? What if I have to get it repaired and they say, "include the warranty certification in the box when you ship it to us"...Would a printout of my scanned copy be okay? This is exactly the kind of "just-in-case" scenario that has led me to keep so many documents over time --- it IS unlikely I'll need it, but I know the one time I DO take the leap of faith, the scanner will start smoking, I'll have to send it in, and they won't take it because I don't have the physical original.
I just can't really seem to find any good kind of guide for dealing with these grey zones. Like I said, some things are obviously garbage, and some things obviously must be kept, but so much of it could go either way...