I use the quick saves for frequent routine saves--love the idea of multiple quicksaves.
I also save at the end of each days session, labelled by date.
Finally I have saves labelled when something important is about to happen (act change, for example), and (changing "emer-1, -2" etc)saves when I think something could go or has gone terribly wrong and I don't want to overwrite a quicksave I might need.
Obviously, I am an obsessive saver of games.