Turn all lights off: Check
Make sure nobody is left in the building: Check
Check fridge to see if anyone left any cookies: Check
Download one last semi-pornographic picture off the internet by utilizing boss's password which he keeps written on a post-it note under his mousepad: Check
Lock doors from inside because company does not trust enough to give key: Check
Turn off raw sewage valve located inside building so it doesn't run into local stream for eight hours: D'oh.