How Do You Organize Your Music?

Depending on how much music you have, I'm sure everyone organizes their music a little differently. Do you separate by genre, then alphabetize? Do you have a chronological system? Do you tab where the next letter starts?

I'm curious to know how people with huge music libraries catalogue their music. Digital music can be very easy to organize if you have accurate ID3 tags, but what do you do with your CDs and LPs?