Research- 5 key insight enabling tools expressed in 2012 1.Follow your rhythm, 2.Nap if needed, 3.If overwhelmed by a problem take a breather and get back to it, 4. Ask for others opinions, 5.Approach tasks as if you are doing them to help someone else.
http://www.psychologytoday.com/blog/your-brain-work/201212/5-big-discoveries-about-personal-effectiveness-in-2012