I love tarsnap (I'm using it in production now). But, I wish it were a little easier to use ... For example, each of my servers creates a backup named somethin

I love tarsnap (I'm using it in production now). But, I wish it were a little easier to use ... For example, each of my servers creates a backup named something of the form 'machineName-epochTime' every night. I wish there was some built in way to delete all but the last N backups. I ended up writing a small Python script to take care of it, but it relies on text-munging, etc and seems brittle. Something that would automate a 'grandfather, father, son' style rotation scheme would be appreciated too. In principle, it isn't too hard for me to script any of this functionality - but maybe I'll make a mistake in the portion of my code that handles my Tarsnap key, or the portion that deletes backups. I'd rather pay someone smarter than me (e.g., cpercival) to specialize on making my backups work. That is, after all, the basic premise behind the Tarsnap business model.