One of the (only) features I miss from Lightwave and the old Amiga Video toaster, is the incremental save system.
If you have it enabled, the application will never overwrite a file on save. Rather it will save another version as "filename_Time_Date_re-vision number".
This allowed me to focus on my task , rather than trying to remember the last version I saved, and typing out a new filename.
I think a lot of people use SVN and Mercurial for this sort of thing. I would rather not have any versioning software installed, for such a trivial task as giving my file a unique save name.
BTW Kudos on the backup system.