Admit it. When do you get your best ideas? When you're sitting at your desk striving for an answer, or when you're doing something off-task like driving, walking, or puttering around the house? On the surface, daydreaming seems like the antithesis of "work," yet it's truly at the core of our most important type of productivity--creative problem-solving. That's why some of the most innovative companies in the world feature programs that give key employees the time and space to think creatively, i.e. daydream--Google offers a 20% program, 3M has a 15% program, and Gore & Associates (Gore-Tex, etc.) features "dabble time." All three companies credit these programs as the source of their most successful products.