Obviously it's a personal choice, but speaking as one who has (unfortunately
has had plenty of experience making mistakes, having those backup files around can be a lifesaver. True, it only saves the previous version of the file, but all it takes to appreciate the "~" files is to accidentally save your changes before you really wanted to. My point is that at first glance they may look like annoying clutter, but they do have an actual purpose and can be quite useful. -- J.W.