bananas!
Anyone who hasn't should go check out Dan Koeppel's op-ed about our impending bananaclysm in the New York Times. I bought Koeppel's book for Emily a while ago (she likes bananas!) and wound up reading it myself — it's good! Since then I've been walking around, using every opportunity I can find to ask, "Did you know that [fascinating fact about bananas]?" To which the answer is invariably "Yes, actually." But it's still an interesting book.