I recently reorganized my production environment.

I have now a dedicated hard disk with 3 folders:

Code:
CDs
Samples
Tracks

CDs contains all Sample CD's I own, Samples is organized in the samples directory and Tracks contains all my tracks. Example of the CDs folder:

Code:
Distorted Reality
Love the Machines
Each folder is the content of exactly one CD. I don't backup the CDs folder, as I have them on CD. The samples folder is pretty unorganized, but the main folders are "own loops" and "own samples" which are containing all the stuff I made myself. The Tracks folder is interesting again:

Code:
Chris Liebing
Compressor Junkie
Frank Kvitta
Timo A. Hummel
I organize all my tracks by their authors (so I can quickly find remixes for C. Liebing or Frank Kvitta, or to seperate my Timo A. Hummel stuff from the Compressor Junkie). Below that, the directories are named by the track names:

Code:
Bastards
HELP! Frank Just Arrived!
Revenge
That way, I can put everything which belongs to a track into a single folder. I also store all the samples within the folder (FL Studio does that by saving the file as .zip). It's pretty easy to backup also.