@deviantony has given the best answer possible. My answer would be:
@extend (deviantony)
Ansible -- instead of Puppet; Python -- instead of Bash (however, I still have some low-level stuff in bash) Tonnes of dotfiles. Because, hey, that's what programmers strive to be: more lazy.
And lastly, my favorite: an automate for Ansible so I can deploy bare-metal machines with PXE Boot. This one took me 2 months to create, but was completely worth it! I'll be open-sourcing it soon! :)