I came across an article entitled "Warning You May Be an E-Hoarder".  The article was okay, but what was a little amusing to me was a slide show named "10 signs you're are an e-hoarder".  For the most part I don't think I "e-hoard", but I can say I do have a slight tendency of what slide 2 covers.  Thankfully though, Google Docs takes care of document versioning for me so there is not a real big need to keep different versions of documents.