There's a #newinwheezy game which basically presents a few of the 4451 new source packages in Debian/wheezy to a wider audience.

My own entry is, obviously, vcsh.

Quoth the manpage

vcsh - manage config files in $HOME via fake bare git repositories

You can also consult the (somewhat outdated) readme or just clone it.

In related news, I have been asked to hold my "Gitify your life" talk at LinuxTag 2013. This talk can be found here. While the text on that page is in German, all slides will be in English and I will happily use either language based on what the audience prefers.