Oh yeah, organizing all of the PDF's on our 'puter, as well as patterns we've copy/pasted into WORD docs...is another job! I did that last year but it could use some tweaking.
For example, my MY KNITTING documents folder is organized into major categories such as ADULT PATTERNS; KIDS; BLANKETS; PETS; TIPS; etc.
In the Adults Patterns, other folders (and sub-folders) appear such as cardigans, jackets and coats, pullovers, tanks/camis/shells, accessories, capes and ponchos, menswear, etc.
At least I know where to begin looking for something! I "send" my "soon to be knit" patterns to my desktop, and they reside inside a folder there. Remember, if it's a 'shortcut' the changes you make to it will also change in the MY KNITTING documents folder.
Anyway, obviously I have an external hard drive that I "push the button" on every day, sometimes more than once a day! Oy vey. To lose all this work would be a disaster.