Those little buttons found on many outlets are part of a device called a ground-fault circuit interrupter or GFCI. Here's ...

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When you layer that mistake on top of aging wiring, shallow metal boxes, and three‑prong outlets with no real ground, you get a kitchen that looks modern but behaves like it is still in the 1970s.

GFCI outlets help protect against accidental electrocution and power surges and are recommended for installation in wet or moist areas such as kitchens and bathrooms. As with any project involving ...