stupid as I am, I did leave my computer running all over holiday by accident for two weeks, 14 days. One hell of a waste of energy =[
I never keep mine on for more than 5 hours at a time, and I spend about 4 hours on it, 1 hour doing something else, normally homework.
Over here in the United Kingdom we are alot more energy aware, if I may say. There is no point having it running while you aren't there, unless it takes an hour to boot. Recently on a program called 'mythbusters' they concluded that unless you were going out of the room for something like 0.214 seconds there was no point in leaving the light on in that room.
[/Greenpeace]

Alex.