We now have scientific confirmation of what I've always known... that it is best to stop consciously thinking about a big problem and let the subconscious do the heavy lifting:
I love absolving my conscious mind of responsibility. Our subconscious does such cool stuff. It keeps the heart pumping, monitors air in/out take, does the serious thinking and is responsible for eye movement and physical stuff like walking.
Almost makes all those things I think about all day seem totally irrelevant.