Carpool if and when you can. When gas first went up the wife and I talked to our bosses and juggled our hours a little so we could carpool together it saves us $250 a month.
Plant a garden if you have room if not use the flower beds for fresh veggies.
Use the screw in fluorescent light bulbs they take some getting used to but they dont draw as much electric.
Water for your garden or lawn use rain barrels to catch run off from the gutters on the house, and things seem to thrive better with rain water.

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The mind never forgets what the hands have learned