A general-purpose tmux configuration, bash aliases and git bash completion and prompt.
Make sure to copy your existing .bash_profile to both a backup location and ~/dotfiles/bash_local/local_options.bash before you replace it!
git clone git://github.com/fawcettc/dotfiles.git ~/dotfiles
mv ~/.bash_profile ~/dotfiles/bash_local/local_options.bash
ln -s ~/dotfiles/bash_profile ~/.bash_profile
ln -s ~/dotfiles/tmux.conf ~/.tmux.conf