Using Git for Things Besides Code

Does anybody out there use Git for other work / projects beside writing code?
I use it to keep backups of prose text that I write (journals, stories, essays, etc, though not this blog).
There are projects out there that use Git for blogging, like  How to Node - just fork the blog, commit your article, and send a pull request.

There's also Octopress - which combines Git with Ruby to make a blogging engine.  Since Backtrace.us runs on Sinatra, and I'm starting to use a lot of custom css and html in this blog, I'd probably be better off moving my blog off of Blogger and onto a self-hosted system like Octopress.  (Then again, I've been on Blogger for almost 12 years, and the convenience is nice.)

Is anyone using Git for revisions with binaries?  Keep a repository of psd's, pdf's or word doc's ?  When I set up a repo for work projects I usually include an "assets" directory where I put things like wireframes, comps, and specs (pdf's and psd's mostly) and then commit them as revisions happen to the project docs, instead creating the anti-pattern of tracking revisions thru filenames - nothing drives me crazy like going into a project directory and seeing files with names like "Wireframes-0612-version2-final-final.pdf"

Anybody do any other crazy things?  Commit and rollback your Redis cache? Track revisions to audio / video files you're editing?  Leave a comment if you do...