Hot glue guns are pretty simple beasts: there’s an on/off switch, a heating element, and a source of current, be it battery or wired. You turn it on, and the heater starts warming up; ...

When you do laundry, there are so many choices to make. Do you really have to sort your clothes? Can you use hot or cold water for everything? How do you know what is safe to dry on high heat when you ...

Mike De Socio is a CNET contributor who writes about energy, personal finance, electric vehicles and climate change. He's also the author of the nonfiction book, "Morally Straight: How the Fight for ...