Alexa is already great, but some smart tweaks and hidden features can make the assistant even better. Here's how.

Heavy-duty appliances overload cords, leading to dangerous overheating and fire risks. Appliances over 1,800 watts need a dedicated wall outlet for safety. Daisy-chaining extension cords is a major ...

Don't spend the winter shivering. Set your thermostat to the right temperature to stay comfortable and save money all season long. Mike De Socio is a CNET contributor who writes about energy, personal ...