There's been a funny smell at my desk for a while. At first I thought it was coming from something I had spilled on the chair, then from the monitor, then from some mysterious item on the desk, although there didn't seem to be anything terribly toxic on there; just a gigantic pile of school papers and reports from my stockbroker.
Today, I was blazing through the paper pile with sword and flame (better than filing, I assure you) and I found a small envelope of vitamins that stank to high heaven tucked into a quarterly report as a bookmark.
Now it smells nice at my desk again.