Justin Jaffe is the Managing Editor for CNET Money. He has more than 20 years of experience publishing books, articles and research on finance and technology for Wired, IDC and others. He is the ...

Space heaters are a fast and economical way to warm up your home when temperatures dip — and they can be a beneficial tool to keep on hand in case of emergencies. Whether it’s a drafty bedroom or ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...