Way back when Microsoft Office was "invented" I remember reading that the advantage of having an office suite was that while you did changes in one document the changes would be also made in another--or something to that effect.
having lost many files recently due to a hard drive crash, hence replacement, It occurred to me that perhaps it would be a good idea to have a back up of all my documents. But what I though of was not to back up files again and again but rather to do it one by one as you are working on a given document.
What I mean to say is, You have Word (2003 or 2007) do automatic saves and automatic copies (As I have it now).

But What I want is, that while one file is being saved, so too, at the same time, the back up copy--including the changes made to the original. Is this possible? I read somewhere that it was but can't find where.
In short I would like to have changes made to the original document simultaneously done to the back up copy when saved AND I would like to have this back up copy on a different drive. (As it is now the copy is made in the same place as the original --which makes it pointless in my view).

thank you