Here's this weeks question:
Do you own any doubles of your books? What led to getting that second...third...or fourth copy?
At the moment I don't actually have any double ups that I can think of. Mostly I have double ups on my shelf if I find a book I want in a second hand store, and then later find the same book in better condition. Sometimes I also get double ups if I've brought a book online and it's arrived damaged in the post, then I usually donate the damaged copies.