IDEO, one of the planet's most innovative design firms, has brought us the Apple mouse, the first laptop computer, and the Palm V. The team's legendary creative process was once showcased on Nightline when they dreamed up an entirely new high-tech shopping cart, going from idea to working model in five days. IDEO's general manager (and brother of the company founder) Tom Kelley explains how the rest of us can apply the firm's creativity-generating techniques to get unstuck.

— As told to Jancee Dunn