MSN produced an informative reading on your electricity bill. Apart from reporting the mixed impact of deregulation and the fact that an average American family pays out $1,400 in energy every year, the article also went to give out a table that lists the average daily electricity price for common appliances.
Some examples (assuming 8 cents/kilowatt-hour electricity rate):
Clothes Washer: 2-3 cents
Clothes Dryer: 14-40 cents
Dishwasher: 10-19 cents
Microwave: 2 cents
Computer: 6 cents
Refrigerator: 46 cents
Flat-Screen TV: 4 cents
DVD Player: Less than 1 cent