How to name, how to organize, what to keep
I have no idea if you are a pack rat. I have been one at times in my life. The following ideas may help, coming from someone who has gone through the process:
If you are on the fence about keeping something, and it is digital (or can be), then I say hold onto it until you decide to throw it out. Whether you do or not, you will be seeing these materials with regularity as you skim through your Reference information for other items. If some file or folder seems stale or unwanted, you can quickly delete it then.
Here are examples of document titles that will not help you find them (you may guess at how I know this) :
New document.docx
spreadsheet.xls
Letter.txt
By contrast, here are file names that will help you when you need it:
(If the chronology of the files matter, then use file names like this: )
990304 - American Airlines - Employee list.txt
^Date updated ^Category ^Short, meaningful title of file contents
(If the file contents matter, but the chronology does not matter, then use file names like this: )
USB vs eSATA article pros and cons - 110403.pdf
^Meaningful title ^Date of item
I would recommend putting these files into appropriate A-Z folders within ONE Reference folder, just like in a regular filing cabinet. I strongly avoid subfolders, as they are not easily skimmed. Instead, I recommend using more meaningful file folder titles.
Here are some example folder names:
1997 Pictures
1997 Personal history
2004 Taxes
David Allen - Getting Things Done audiobook
Job at American Airlines
Job at Marriott
Patterson project - archived
As for file formats, I recommend using plain .txt files where possible, .pdf where not possible, and .mp3 for audio. These file formats are the most universal.
I strongly recommend not archiving anything as word processing files (e.g. MS Word) or any other office format (e.g. Excel, PowerPoint, OpenOffice, etc.). You will curse the world the day you need to open a Word 2010 file and the only available computer has Office 2003 on it.
For ongoing work that is still being modified, office file formats are very useful. When you are storing their contents, convert to PDF. Trust me on this.
Hope this helps,
JohnV474