Two of the reasons I go through cans of it:
1. You can restore vinyl records with it -- there's a process that takes a while, but it doesn't hurt the records at all, in fact it improves the condition of the vinyl over time. [Don't try it on lacquer 78s, though.]
A South-African record collector and I were experimenting with it a few years ago and exchanging e-mails about our results, which were phenomenal.
2. Preserves hardbound books and paperbacks -- with the book closed, spray the three outside edges completely (the pages, not the spine), then apply a thin coat to the covers and spine, and store it in a plastic bag until it dries (it takes days). For paperbacks that are glue-bound, avoid the spine because the WD-40 might loosen the adhesive.
Also, whenever I buy something second-hand and there are old adhesive stickers (i.e., name/address labels, "cute" novelty stickers, etc.) that would damage the item if you tried to remove it, I use WD-40 with a Q-tip or something like it. It usually takes quite a few applications over time (especially with laminated stickers) before the WD-40 completely dries out the adhesive backing and the sticker pops off.
BTW, that South-African record collector and I contacted our local WD-40 distributors (the company licenses its product to be made internationally and there are local websites as well as a main site in the US) because we thought the active ingredient was silicone, but it is some kind of distilled mineral oil (not fish oil) -- no silicone. Still, it's not good to breathe it in when spraying it.
Edited by: KURTORTOISE at: 12/6/2011 (23:46)
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