After presenting on 'Fearless Development with Drush, Vagrant and Aegir' at DrupalCamp Montreal, I was approached about a rather interesting project. It involved synchronizing data between a couple dozen Drupal sites running on Windows systems. To be able to better manage the Drupal components on these systems, we decided to deploy Aegir on Vagrant-based virtual machines (VMs).
I recently decided to put my various config files (dotfiles) in git, so as to make them more easily portable (and shareable): https://github.com/ergonlogic/.dotfiles
I'm relatively new to quite a few of these program (irssi, mutt, awesome) so I'm finding myself spending a lot of time figuring out how to configure them to my liking. I'd say I'm only about 60% of the way there, but it's still miles better than the alternatives (pidgin, thunderbird, gnome).