I love Scott Berkun and he hits it out of the park with this post on how to be creative:
The biggest difference between you and Picasso, or Einstein, or whoever your heroes are is that they out work you. They spend more time in front of a canvas, or guitar, or computer, working away at applying their minds and souls to specific things.
Creativity is not about flashes of lightning. It’s about grinding it out.
He is a great example of a guy grinding it out. He was a key player in developing Internet Explorer for Microsoft and decided to give up the stable career of writing software to focus full time on speaking and writing.
That takes balls.