Well a lot of things actually - during the day, I sit, in front of a computer, and write alot of C/C++ code. At night, I tend to smoke cones and watch TV. Of course that isn't the be-all and end-all of my existence, but that what usually happens during that week.
Come the weekend, and I tranform into a card carrying, glow-stick waving, use to much gel, funny pant wearing, weirdo commonly known as a raver. Of course this neither is the be-all and end-all of my existence, but it is my preference for spending a weekend! That and driving between Sydney/Bathurst/Canberra visiting my girlfriend, family and friends.