The greatest deception men suffer is from their own opinions. The five senses are the ministers of the soul. I am frightened by old ones. Be Playful Intellectually. Actively employ a sense of humor.
Ideas often strike at times of relaxation.
Poke fun at carefulness. Look for novel ways to think about the problem or goal. Look for combinations and associations. Use cross fertilization, people with different talents and experience. Put yourself in shoes of the end user.