At a corner shop in North London, cashier Sabesan Chandralingam said he had sold all of his 26 copies by 10:30 a.m.

WSJ: British Tabloid News of the World Bids Farewell

But everyone gets two copies of the gene--one from each parent--and even a single M scuttles any hope for a magical career.

FORBES: Harry Potter, Science Teacher

And I don't have to worry about whether I'm working with the latest version of a document, since I don't have duplicate copies residing on several computers.

CNN: Opinion: Linux doesn't do Windows -- and neither should you