Some other cool features:<p>Monitoring background windows: with monitor-activity, monitor-silence, and monitor-content [term], you get a visual notification when there is activity, a certain period of silence, or an occurrence of [term], respectively, in a specified background window. Sometimes I open several error logs in a background window and monitor-activity so I get a notification if anything is written.<p>synchronize-content: I've only used this a few times but it's a neat trick! With several panes open in one window you can send keystrokes to all the panes at once. I've used this while connected to more than one server to compare the contents or make changes simultaneously. I won't claim this is the safest way to work but it comes in handy.<p>Managing windows and panes in tmux is pretty painless, in my experience. Resizing, switching, etc. are all very simple. One final feature I like, tho it's trivial, is the "show the time" command (bound to prefix-t). Invoking it gives you a nice big digital clock in a window or pane. I put this below my ttytter pane so I don't lose track of time. :)<p>I don't know how much of this you can do in screen as I've never used it, I'm sure there's a lot of overlap, but as a sometimes very critical software user let me say: I love tmux.