Earth hour - the hour's switch-off of all electrical appliances in a futile attempt to reduce CO2 emissions - was last Saturday. Did you observe it?
If so, I hope you actually left jobs undone that you would otherwise have used an appliance for. I hope an hour's worth of washing remains forever in the linen basket, I hope an hour's worth of carpet remains forever unhoovered. Otherwise, if you just moved the activity to a different hour, those awful emissions will just have happened an hour early or an hour late.
"Ah", but I hear you cry, "I turned the lights off". Well, I hope you didn't light a candle.