A story that piqued my interest:
How toilet paper explains the world.
At different stages in our lives, we require more and less of certain hygienic products: First diapers, then mostly toilet paper and menstrual maintenance items, and as bowels become more difficult to control, a different kind of diaper. It stands to reason that the relative popularity of those product categories would reflect a country's age demographics -- and the market research firm Euromonitor has given us a map to prove it.
http://www.washingtonpost.com/blogs/...ins-the-world/
Funny what you can do with data, isn't it.
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