Other popular uses are as coasters and to hold other books open when you're typing notes.
But there's something about books, I don't know, I don't like using them as coasters. I would rather use a CD cover, because let's face it, who really buys CDs anymore? Aren't they kind of antiquated even now? What else would a person use a CD cover for anyway? Nothing. Fact of the matter is, you don't even have any CDs left because you sold them to fund your
Besides, I am not a happy person when I see a water ring on the cover of a book. It's just, you know, part of my belief system. How can I face a book with a water ring on it??
And I guess that brings me to my next point, never judge a book by its cover. Gulliver's Travels will still be just as shockingly entertaining no matter what century it is in, and - perhaps - no matter how many water rings it has on its cover(s). I guess sometimes the worn-in look is synonymous with the much-loved look.