GIMP Script: Save Working Backup
I posted this at the gimp plugin registry and at gimptalk, but I know not everyone here looks at those sites.
This is a simple utility script I wrote to help make backups when working on a large maps
There are no parameters.
It will save a backup copy of your active image as [imagename]-YYYY-MM-DD-HH-MM.xcf in the same directory as your active image.
If the active image has never been saved, it will pop-up a message stating "The file must be saved before a backup can be made."
It can be easily accessed with Alt-F, B
The script can be downloaded here at the GImp Plugin Registry.