So we do nothing?
I don't bother turning my mobile charger off, I don't use energy saving lightbulbs, because it's such a teeny amount of energy saved? I'm sorry but that attitude sucks. I'd rather do my bit however small than sit in judgement over those who are trying to help.
Paul already said in the grand scheme of things it's only a small amount, he's not claiming to try to reverse AGW. So well done Paul, I'm glad you are doing your bit.