File Folders – How do you organize your lifes stuff?

How do you file papers and paper work? Do you have a filing system? As I clean out my office at work and look at all the files I kept.. WHY OH WHY did I keep such stuff? I have cabinets filled wiht paper and I have not looked at in years.

I used to use an email software called Eudora and you have to file emails into folders. Now with Gmail, you don’t have to do that any longer. You can just have one large bin and use google’s search capabilities to find what you need. What’s your filing system?