File Organization Tipps

Hi,

A few weeks ago i was totally re-organizing my file system on the computer.
What i did. I threw all of my projects, everything, into 1 folder and from there moved them to "Archive" or the "Pending" box.

The problem starts with Archive. I don't where exactly to store my files. Some are more like Art, Music (i am a musician) and so on. But problems come in when i reach files for my job. As i said i am a musician - an Audio Engineer to. So where do i store those file regarding reading material about Audio Engineering which tell about music theory? Hmm?!
Sure, i can tag those files with Quicksilver or Punakea (the best tagging software i found for the mac except it doesnt let you choose which characters to use for delimiting tags) but, you know, that isn't exactly what i am looking for.

So i asked myself, how are you organizing your files, your life etc into folders and subfolders?

Thanks in advance