Thanks to Ben Casnocha for pointing me to this great article by Ed Boyden of MIT on How To Think. It makes me feel smart, because I do many of these already. My favorite is number 9, which should explain to my boyfriend why I'm always taking notes. (He thinks I'm weird.)
9. Document everything obsessively. If you don't record it, it may never have an impact on the world. Much of creativity is learning how to see things properly. Most profound scientific discoveries are surprises. But if you don't document and digest every observation and learn to trust your eyes, then you will not know when you have seen a surprise.