Seal up air leaks by installing outlet and switch plate insulators - small foam pads that fit behind cover plates. These cost only about a dime and take less than two minutes to install. In winter, allow the bath water cool down to room temperature before draining the tub, as this permits the transfer of heat from the water to the living area. As the refrigerator is a significant energy user, it should be turned off and cleaned out before a long period of non-usage, and the door should be left slightly ajar. The light inside the refrigerator should be turned off either by removing the bulb or disconnecting power to the unit.
Recycled glass uses only two thirds the amount of energy needed to make new glass.
For every bottle you re-cycle, you save enough energy to run a small television for one and a half hours. The heat of the sun powers the earth's water cycle. It acts as a giant mixing system by evaporating 124,000 cubic miles of water per year, and recycling it back to the sea as either water or snow. A family of four, each taking a five minute shower, every day will use more than 700 gallons of water every week. This can be reduced significantly with high efficiency, low flow shower-heads.