Whatever time isn't taken up with uni or work, I usually spend sleeping. If any time is leftover, then I'll be playing music, sport, or partying. A lot of this is done with my housemates Matt, Maddy, and Carrie (snapshots to come).
I sing, play guitar and keyboards - usually only stuff I've composed myself. I write songs in a mellow rock style (sometimes grungey, sometimes pop-like) and record them on a Yamaha 4-track. I almost always use a MIDI sequencer (Cubase VST) for tracks that aren't guitars or vocals. Here's a list of some of my masterpieces.
When I'm "feeling kinda sporty", it's squash, basketball, volleyball, or hockey. I also try to get to the gym at least twice a week.