Gregory's ServerI agree that individual actions pale in comparison to industrial/capitalist causes, but they do aggravate global warming too - IIRC the remedy to global warming is 25% individual actions and 75% abolition of capitalism (to summarize).
Turning fans on or off is not a major impact, but producing ice in the fridge to cool the air begins to reach the levels where huge energy inefficiency has an impact, even at individual levels.
@elilla
If it wasn't clear, I was referring to the advices that @lx242 linked to via the thread by @welshpixie
Yours are low-tech and efficient.