I'm rearranging my older D&D books and placing product lines together and just making things easier to find if I would need to. I am surprised to find that I seem to have duplicates[snip]
I've got a significant number of duplicates 1e books and modules from over the years. In many cases they were included in eBay lots that I bought, where I bought the lot for just a few of the items in it; in other cases, I've picked up nice condition 1e PHBs, DMGs, MMs, and such at used bookstores with some regularity, if the price was sufficiently low. In addition to my play copies of the rulebooks, I now own 19 MM, 19 PHB, 14 DMG, 8 D&DG, 7 MM2, 7 UA, 5 FF, 3 DLA, 2 DSG, 1 WSG, 1 GHA, 1 OA, 0 FRA, and 0 MotP. None of those figures include the miniature versions of the books, or later editions; or the 11 OD&D box sets plus the 1 woodgrain set. Until I started to organize my collection better, I certainly had no idea that I had sufficient books to stock three 1e-based FLGSs
Another thing that amazes me is the other crap I stored in some of these box sets. [snip] So, what odds and ends have you found going through old gaming books?
In my own books and boxes, I've found stuff that I'd lost years earlier, including:
- my original correspondence with EGG and RJK from 1987-88 during the New Infinites days (stored in the original mailing box from the Dungeon Hobby Shop that I received my first OCE in, though I sold the OCE in the middle '90s)
- some of the first adventures I ever created (really bad

)
- in my 1e FR box set: pages of collected FR names of places, NPCs, treasures, etc., compiled from Dragon articles prior to the publication of the original box set
- partially finished maps
In used stuff I've bought, I've sometimes found fun unexpected goodies, including:
- a complete but cut set of Outdoor Geomorphs
- extra modules in box sets
- homemade dungeon or wilderness maps (sometimes with keys)
- PCs/NPCs on looseleaf or character sheets
- random campaign/adventure notes