A friend of mine stores random cash in books- a $5 bill here, a $20 bill there. I’d have to be much more deliberate about it so I’d know where it is when I need it, but I think it’s a good idea. We have built-in bookshelves in the office with most of our books in there, so it would be easy enough to devise a system (twenties in Tom Clancy, fives in Dick Francis, etc, or maybe by the number of letters in the authors name). While it wouldn’t be protected from fire, it would likely be safe from thieves. Fortunately, we don’t loan books out much so there isn’t much risk of losing the cash.
