[philip.j.fry]

I tend to leave it on during the day when I am in as I'm nearly always on it so it saves having to wait for it to start up every time. I switch it off when I am out or at night though unless I am downloading something. Since I've left Uni and started working it's been off most days instead of the 16+ hours it used to be on and I have noticed that the electricity bill is significantly reduced.