I was just reading something in [Emacs-w3m](http://emacs-w3m.namazu.org/) and I didn't like the way lines were being displayed, all the way to the end of the screen. I like it that when I read something it is filled to something like the 80th column of the screen. So I looked and I found the `w3m-fill-column` variable. By default it's set to `-1`, meaning the entire width of the screen - 1. After changing this to `80`, the pages being read are filled up to that column and I don't need to think about the size of my window anymore.