I found two online CSS tools that help optimize and organize your CSS, which is handy for both beginners and experts alike, especially if you can’t be bothered with doing it manually by hand.
Tweaker, Compressor and Optimizer – http://bit.ly/cX6XZT
Beautifier and Indenter – http://bit.ly/cN1bSZ
Of course, if you’re OCPD like me, then you won’t need these unless you’re also simultaneously lethargic like me. 😛