Household rules vary quite a bit from home to home, but there's one that most of us grew up hearing over and over again: "Turn off the lights when you leave the room!" If you had parents who were at ...

Experts say technology has changed, and so has the value of manually turning off the lights in your home.

Many of us grew up hearing our parents repeat, “Turn off the lights when you leave the room!” It was a household mantra passed down by energy-conscious parents trying to cut costs and implement a ...

There's a decades-old myth that says it's cheaper to leave your house lights on all the time than to turn them on and off when you enter and exit a room. The belief is so widespread that even the ...

Let’s look at the two lamps in my office as an example, which use a 13-watt LED bulb and a 19-watt compact fluorescent lamp, or CFL, bulb. For easy math let’s say I work eight-hour days five days a ...

Add Yahoo as a preferred source to see more of our stories on Google. SpiffyJ/Getty Images Household rules vary quite a bit from home to home, but there's one that most of us grew up hearing over and ...