Paolo Cereda recently published version 2.0 of the TeX automation tool arara. The most notable change: there now is an installer which should make the installation process much easier. And for all Windows users out there: yes there also is an installer for Windows! The installation process I described earlier still works, though.
I have to thank Paolo for mentioning my humble attempt to advertise his awesome tool in the documentation.
Have as much fun with it as I do!