My computer stays on through the week, only getting shut off on the weekend.  My answering machine and TV stay plugged in, their little red lights glowing in the night.  I do turn off the treadmill between uses and the DVD player too.

My energy habits are probably similar to many Americans.  If you’re wondering how much energy you’re wasting, or conversely, saving by turning appliances off, check out this energy calculator from GE:

This is a really cool tool that calculates  how much power each appliance consumes in watts or kilowatthours.  Alternatively, you can see how much each appliance costs to use in dollars, and how much it consumes in equivalent gallons of gas.

Some appliances are marked with a blue star indicating that an  EnergyStar model is available or click on the green star to see how much energy (and money) you’ll save with a new appliance.