My favourite program for managing split console screen is byobu. Under the hood it uses tmux but it just seems so much easier to use.
It has full mouse support too which means resizing and navigating between splits is easy to do when you can't remember that weird keyboard shortcut!
Thank you for this article. This makes so much sense to me that even when I am really tired that I can still get a couple of hours development work at night after I my kids go to sleep.