I have a part-time job at a place where printing, copying, scanning, faxing, and shredding happens every day. Thus, we have about two large cabinets with about 56 reams of paper (packs of 500 sheets) in each cabinet. Of course, even though we use paper every day, we don't use that much, so many reams of paper go untouched for nearly 2 months. Then, when the new supply of paper comes in, they usually go right in the more-empty cabinet, leaving the full cabinet (of 2 month old paper) untouched for yet another 2 months.
My coworker (secretary, some lady) keeps telling me that I should make sure to not just keep taking paper from one cabinet, but rather alternate between the two. When I ask her why, she says "because the paper gets old and yellow."
On what time-scale is this true/significant? If the paper is in a closed cabinet, sealed inside a paper-cover, wouldn't it essentially not change for hundreds of years (if untouched)?
I can't help but think that this is just some common misconception/myth.