Buy LED's | Save on your electricity bill
LED's are a great way to be greener. They cut your energy bills by saving up to 80% energy use compared to their pricey Halogen cousins.
Although LED's are initially more expensive than Halogen bulbs, they do last much longer. If you used an LED for 12 hours a day it would have a lifespan of 5 yrs and eight months, whereas you'd be changing a Halogen after only four months. Think of all that time you're saving by not having to change them so often!
There are lots of organisations that can help with comparisons on energy usage in the home, from LEDs to Kettles to cars. You really can cut your bills instantly.