Another kind of creative problem, though, is when you don't have the right kind of raw material kicking around in your head.

WSJ: Jonah Lehrer on How to Be Creative

You're sticking your head in the sand if you're not cautious right now.

CNN: WATCHING WALL STREET

Radio comes right into your head, as if you're driving in the car, for example, it's in there in the car with you.

NPR: Health Care Debate: Why So Much Yelling?

You'll see the arrow pointing on a map where to go, but if you turn your head, that arrow doesn't swivel around to stay pointed in the right direction.

ENGADGET: Living with Google Glass, Day Two: Around the House