If you're looking for a more structured version of this, I'd highly recommend checking out vimwiki[1]. Its diary feature does exactly what you mention, plus it

If you're looking for a more structured version of this, I'd highly recommend checking out vimwiki[1]. Its diary feature does exactly what you mention, plus it will autogenerate a nice index file for you (among many other features). [1] https://github.com/vimwiki/vimwiki https://github.com/vimwiki/vimwiki