I use zsh, and my handy shortcuts are in this .zshrc file.
My favorites:
setupfor easily setting up a rails project (installs gems, creates, migrates, and seeds db)clopenfor easily cloning, nicknaming, then opening a repositoryherokunamefor quickly creating a unique Heroku-type repo name (e.g. 'fast-broccoli-2309')gcfor quickly adding & committing all changes