Their replacement equivalents, compact fluorescent lightbulbs and light-emitting diode bulbs, are bright, use 75 to 80 percent less energy, and can save you $60 to $125 dollars per bulb in energy ...

Adjusting your manual unit a few degrees up or down can also have a significant impact. In fact, according to Duke Energy, a change of just three degrees for 24 hours a day can save 30% on your energy ...

It's also a science that can lead to major savings. With the right approach, you could cut your energy bills by hundreds ... These pros can tell you how best to use your specific system for ...