Author
Leo Babauta gives us 7 simple, yet unbelievably effective habits that will not just help you become organized. They'll transform you into the
SUPER organized.
But don't despair if you are a mere mortal!
Babauta recommends you start slowly.
"Work on a habit for a month or so, then move on to the next one. Or adopt two or three if you think you can handle it, but don't do them all at once."
Personally, I use habit number 2 religiously:
Write it down now, always. Using 1 subject spiral notebooks purchased in bulk at the end of each school year, I write down anything and everything I think of. Having all my information and thoughts in one place frees me (from needing to remember it all) and my desk (from becoming devoured by post-it notes).

7 Secrets of the Super Organized - Dumb Little Man-C. Ray Chapman