Don't know whether I ever mentioned this: ConnectedText includes automatic version control for every topic. I find it very useful.
Atlantis also includes version control of sorts. It allows you to back up a file automatically at certain intervals. It's better than the Microsoft way.
Sometimes this is not enough. I then use Backup Revision File. It's an AhK application that allows you to specify files it monitors and then prompts "the user for a 'file save' and then asks you for some text input (which you can ignore). These solutions are more than enough for me. Don't need Git or any of the other fancy server-based solutions.
I tried Autover for a while, but ultimately I liked Backup Revison File better.