I'd just go to a 'vending-machine' style shredder. For a aligned pile of flat paper that you can just slide in they work very very fast. (They're absolutely ho

I'd just go to a 'vending-machine' style shredder. For a aligned pile of flat paper that you can just slide in they work very very fast. (They're absolutely horrible for receipts even if you align them due to the entry way being too thin) Accumulate a pile of several hundred papers, go to the machine and shred it in a couple of minutes and be done with it.