Climate change at home - LED lightbulbs are waaaaay more efficient than incandescent bulbs - using 50% to 80% less energy. Not only that, they offer a number of other benefits such as less heat, last longer (up to 25 times!), and come in a huge variety of options. The only downside is they are more costly for the initial purchase. However, you will still save money. Added benefit - they last so long, you don’t spend a lot of time changing them - this makes them a time saving idea as well.
The electricity used over the lifetime of a single incandescent bulb costs 5 to 10 times the original purchase price of the bulb itself. Courtesy of Eartheasy