most recent post at Northern Cheapskate. It is filled with several tips and suggestions.
Also, don't forget about nightlights you have in your home! Instead of using a nightlight with a 9w bulb, switch to an LED nightlight. They are comprable in cost and the bulb will last a much longer time and it can be left on 24 hours a day and costs about 50-cents A YEAR! If you buy a nightlight with a built-in sensor and it's on for 10 hours or less a day it will cost less than 25 cents a year.