Brainstorming is an activity that often makes liberal use of creative thinking in order to (starting with little or nothing) generate a product or a collection of insights. (Levine, Mel, MD. A Mind at a Time. NY: Simon & Schuster, 2002, pp 211-213)

Brainstorming can speed creative thinking about a specific problem. List playful/weird ideas, avoid censoring, select best 2-3, and evaluate. (Siebert, Al, PhD. The Survivor Personality. NY: A Perigee Book, 1996, pp 68-70)