Every once and a great while I stumble on a Linux distro that makes me sit up and smile. Modicia O.S. is one of them. It is not that Modicia steps over the bleeding edge of innovation. It is a seemingly standard desktop Linux distribution based on Xubuntu. It comes in one desktop flavor, Xfce -- but with a twist. Yet nothing is standard about Modicia O.S. That is what generates the happiness. This distro takes one of the oldest and most reliable desktop environments and adds features and conveniences that make it seem like a new discovery.