Adam is right…
As Adam has said before, screen rules. It can be used in conjunction with a bunch of other stuff but its main benefit (in my book) is solving the scenario of getting re-connected to a remote shell session. The multiplexing is, IMO, like a poor man’s emacs buffer/window management system, but when I lose an ssh connection because I take my laptop somewhere or whatever, being able to reconnect with screen -r - that brings me great joy.
Note: this will not be the start of a recurring series to some day feature vi or svn.