VIM, if configured, provides a huge benefit for my daily work.

On a daily basis, I use plugins like Snipmate or syntastic. One thing I was still struggling with, was to just include filesname of existing files into my writing.

No, I do not mean to open the files, just find and add the correct filename into the current line I am writing in.

Turns out: VIM can already to this.

So in the insert mode, try CTRL+x CTRL+f when typing any existing path. VIM will suggest matching files and directories and include them.