O'Neill: "The Energy Star Program estimates that 10 percent of the average homes energy use goes toward lighting, meaning keeping those incandescent bulbs on can really add up. Using compact fluorescent light bulbs, or CFLs as they are commonly known, is an incredibly easy way to reduce your homes energy load and keep about $190 in your pocket each year. That said, CFLs arent perfect for every situation or every lamp, but dimmable bulbs are actually available, and are increasingly available at everyday places like Wal-Mart and Home Depot. For a thorough look into the modern state of CFLs, check out TreeHuggers Green Basics: Compact Fluorescent Lightbulbs. For a list of dimmable CFLs available on the market, go to One Billion Bulbs.
(Wendy Maeda/Globe Staff)