Autosaving in Jupyter

After the latest incident were I got some problem in my Jupyter notebook, had to close it down, reopened it, and realised that it was the same as last evening, I figured I needed to do something about it never auto-saving and relying on me remembering to save all the time.

I have looked around, but not found anything. Is there some way to set the auto-saving to a certain interval in Jupyter? Preferably over all, rather than doing it for every individual notebook.

Thanks

I do not know the simple and direct way to do this but I use jupyter nbextensions which allow me to manually select autosave on/off.