JKR: That was the phase where the "penniless single mother" sort of tag to my name came along -- which was true, but it wasn't enough I was a penniless single mother. I had to write on napkins, 'cause I couldn't afford paper, and then we started straying into the realms of the ridiculous. Let's not exaggerate here, let's not pretend I had to write on napkins because I didn't. They started sort of adding little bits and pieces that just weren't necessary, because the stark reality was bad enough