Here's one more gadget that will help you reduce your electricity bill and do your bit for the environment at the same time. The Sunnan desk lamp from IKEA has solar cells that you leave in direct sunlight over the course of the day. A 9- to 12-hour recharging period will yield about four hours of light from its LED bulbs for use at night.
Like many other products from IKEA, the Sunnan desk lamp has an attractive design and, more importantly, isn't expensive. This one is listed at $20.