I have quite a few paper items. I use Ultra Pro acid-free sleeves and put them in 8x10 toploaders. I also have a large binder or two of Ulra Pro 8x10 acid free pages full of lots of paper items.
On the flip side I have bought lots of items with really old plastic holders and most of them have turned yellow and/or brittle. I don't think these new types will do that. And everything is kept on a shelf in a dark closet. Where else you gonna keep some of this stuff?
