As Halloween approaches, so do colder temperatures for much of the U.S. That means that furnaces, boilers and electrical heaters are about to take a nice little bite out of your electric bill, zombie style.

To illustrate the toll on your household budget and the atmosphere, Google has created an >energy savings calculator and has published efficiency tips to maximize your savings in what promises to be a brutal winter (economic, not weather-wize, though maybe that too).

Don't forget, you can always download the company's power management gadget for Google Desktop.

With that said, boo!