Sounds like everyone has gone Kondo Krazy after Khristmas! (I'll get me coat. Ahem.)
I also threw out a lot less in the way of paperwork than MK advises. Mostly because TAX CRAP, SO MUCH TAX CRAP. Still, I did end up chucking millions of bank statements and credit card statements (kept the annual ones) because I figure if I'm in need I can pay the 40p or whatever to get a new paper copy. And that seems unlikely in the first place.
Still, things related to HMRC generally stayed. Because...yeah. Those guys.
I did throw out a lot of manuals too, because seriously, I just google my problems nowadays, so unless it was an actual warranty paper, why would I bother keeping it? I know how my stuff works! (Mostly!)
And all this has the added bonus of making the Really Important Things (birth certificates, marriage certificates, house-related legal papers) much easier to find.
Glad my tip helped, kermit! And I'm right there with you, mango. Clothes are one of those things that I keep going back to and chucking the odd thing. Like the tunic which I loved last winter which has now got mysteriously shrunken arms. Oh well, it was great while it fitted!