Cold outside...

The heating keeps it nice and warm inside, except on warm-sweater-day, when we collectively put the thermostat two centigrades lower and put on a warm woolen jumper to make it through the day. Yesterday I found myself confronted with the announcement that not only would the heating be turned down, but there were warm-sweater-day-activities between 9 and 10. Activities I didn't know about, so I did prepare lessons for that hour, but who complains when the substitute of teaching is hot soup and aerobics to get warm. Although warm-sweater-day was installed as a day of awareness for the energy we spend with just heating giant buildings like schools, the teachers do a good job of linking broad ecological awareness with healthy food and exercise. The kids loved it: drank their soup, jumped around like loons at the signal of their gym teacher, and generaly got way too hot, because most of them were wearing not one, but two or sometimes three warm sweaters. I don't think anyone got cold on warm-sweater-day, and according to the newspaper such a day does save energy and money. I don't have a thermostat to turn lower, because the building I live in gets heated by one big furnace in the cellar. We use low-energy bulbs and are starting to isolate the appartment where we can to reduce our energy costs and our CO2-emission. What measures do you take out of ecological awareness?