This. I wish I had thought of your example first.

We have service agreements that go through revisions. We copy the whole directory when there's a new release to ensure we don't lose old templates. At that point search on service agreements brings up a bunch of identically named documents in a listing that does not distinguish the directory location. It's actually caused us to send the wrong doc on several occasions.

Google if you are listening please fix this. Just do what everyone else does. You don't have to be creative.