Your dotfiles are how you personalize your system. These are mine.
If you're interested in the philosophy behind why projects like these are awesome, you might want to read Zach's post on the subject.
Pull down the repository and then create symlinks using GNU Stow.
git clone git@github.com:jamiereid/dotfiles.git ~/.dotfiles
cd ~/.dotfiles
stow fish tmux # and whatever else you'd like to use
A lot of my config is taken from many different repos. The current layout and deployment is based on alexpearce's dotfiles.