Extension cords, commonly also referred to as power strips, simply add convenience by making a power outlet more accessible. An extension cord with multiple sockets can even take care of busy ...

The sockets eliminate cable clutter by putting an extension cord in the wall itself (too bad if you have an old stone-walled house). Squeeze the little ears to release the socket’s core and out ...

But how many people do you think are eager for premium electrical sockets, when an extension cord costs $4, and an outlet costs $2? Verdict: Genius. Almost. But not quite. Dang.

“These devices may seem small, but they’re power-hungry. A hair dryer can use over 1800 watts, which is a lot for a multi-socket extension lead to handle safely.

Extension cords do not consume any electricity when not in use, nor do unpopulated sockets pose any sort of safety concern.