Yesterday's question got several good answers, and one I'd never thought of: changing the font. I'll add that to my repetoire!
Today's question is one I have trouble answering, probably because before publication, a writer has all the time in the world to write. It seems I always get "How long did/does it take you to write the book?" With or without stops and starts? The first draft, the polished draft, or the final, ready-to-be published version? There are lots of variables, so here's a specific question.
If you had an idea for a story in your head and your publisher asked how long it would take to get it ready for submission to their publishing process, what would you tell them?