WHEN AN IDEA IS NOT A BOOK

The most common question people ask writers is, "Where do you get your ideas?" For a long time I struggled with finding a helpful and polite answer to this question. (Before you say it: I know, I struggle to be polite at the best of times.) My instinct, depending on how crabbit I was feeling at the time, would either have been, "From my head, duh!" or, "Oh, I don't know, really - they just sort