This is a two part class aimed at expanding a developer's toolset with both tmux and IPython. In the first half, we will learn about tmux. I will first explain its client-server model and general architecture, compare it to GNU screen, and show some use cases. Then, we will start using it, create a customized profile, and solve a simple distributed computing problem with tmux. In the second half of this class, we will start using IPython. I will first explain what it is and review different use cases. Then, we will start using some basic commands, customize our profile and aliases, integrate python and shell scripting into the same code, and, time permitting, see some of the interactive scientific computing and interactive distributed computing possibilities. If you have one, bring a laptop with tmux and IPython already installed.