Charles Stross on where he gets ideas for stories.
Ideas! Ten a penny! New ideas, one slightly careless owner, get ’em cheap while they’re fresh!
Ideas, hah. The real challenge in this line of work is being able to weed the productive ones from the chaff, to decide which you’re going to spend the next six to nine months turning into something that people will pay for.
Remember: ideas are the easy bit. The rest, as the man said, is perspiration.