GFCIs save lives. Learn how to test your GFCIs two ways, with these instructions.

The majority of electrical outlets in your home look more or less the same: two outlets, three holes in slightly different shapes to insert up to three prongs and deliver electricity. Some outlets ...

Once again we’re trying to dispel a modern mystery that lurks in plain sight. For previous columns, click here; to submit your own suggestions, see the e-mail address below. Who indeed? Next time ...