I'm sorry if I sound rude. I don't mean to be. I'm just saying that backing up your git workspace to recover from rebases or merges gone wrong is not necessary. Those are not "surgical tools", they don't modify existing commits. (edit: yes you can "edit commits", but they only create new commits, the old commits are not deleted in the process and they can still be found easily)

When you commit in git, that saves the whole project as a "snapshot". If you find yourself lost in some rebase hell or whatever, just reset HEAD back to a previous commit. It's simple as that! (git reset --hard <commit>)

Why I decided to reply to your comment was because this is a very crucial part of learning git. When you realize that you can always go back to what was before, you can start experimenting more freely.