we dont' live in a monster house bigger than we need just to soothe our egos like some folks do. to me that is a huge waste of power and resources.
we've always turned off lights when we aren't in a room, we use those new light-bulbs in our light fixtures, in the winter we've always kept our heat turned down to 60' at night and 70' throughout the day. we traded our pickup truck in on a more fuel efficient car, we always use transit whenever possible, we don't use throw-away containers, we have huge tanks that we use to save the winter rain water, our washing machine drains into a large barrel outside as well and i use that water for the flower garden, we are in the midst of changing our flower garden into a more drought resistant garden so it won't take as much water. we tore out all the grass lawns that required watering and planted drought resistant plants. it all takes money so we have been doing a little bit at a time as far as plants - it has taken us two years thus far, this year it will finally all be done and our grounds will be almost no care - almost everything will thrive on the water nature provides and our saved winter rain water will go to the veggie garden.
it isn't much but its something - we can't afford solar panels or the like but we have always tried to do our best to leave as small a footprint as we can, we haven't just jumped on the bandwagon so to speak! lol