At home, I am usually hacking away at some pet project. Most recently it was a sound engine using OpenAL and a Minecraft mapping program I've been modifying to render all of the stuff in Tekkit. This all assumes of course, I'm not coding for work.
If I'm not hacking I'll try to get in a couple hours of guitar or electric bass and practice. I'm sure the guy who lives above me hates me, but I don't care. I have to put up with his jumping, dropping bowling balls and slamming doors. I guess that makes us even.
At work I do a lot of different things. I've been sent to other countries and do general product development. We put high DC voltage into drinking water to pull out all the minerals and other desolved solids that make it taste crappy. It's totally safe.
I'm also in the process of buying a house. Scary.