I often work on my mix for a long time, and forget to save copies of my song file, so I can't go back to earlier states. Which is bad, because I tend to change a lot.
It would be nice to have an additional item in the File menu that is called e.g. "Save incremental". It would save a copy of the song and add a number to the file name.
Ever time I use that function, it would save another copy of the current song and increase the number.
Should be easy to implement and would provide a great benefit, IMO.