[AlexanderDhoore]

Tmux + Vim = Pure Awesome.

I use vim-slime[1] to send strings to other panes in tmux. I never type anything directly into a REPL. I just send my code from Vim to it. It's amazing with lisp or python. (A little less amazing with php, as the php repl IS AWEFUL)

[1] https://github.com/jpalardy/vim-slime

[iron_ball]

Ruby users may also be interested in adding pry to that setup: http://www.alanmacdougall.com/blog/2012/03/27/using-vim-slim... (disclosure: my own blog)

[tunnuz]

I totally agree. Plus, I use tmux + top, tmux + watch at work to get a quick idea on how my running experiments are going. It's really effective.