Cheap, low-quality power strips aren't afraid of cutting corners, and the USB ports on them are most vulnerable.

If you grew up with adults telling you to unplug appliances to save electricity, it turns out, they weren't being dramatic — those appliances can continue to drain energy, even if you power them off.

Jon covers artificial intelligence. He previously led CNET's home energy and utilities category, with a focus on energy-saving advice, thermostats, and heating and cooling. Jon has more than a decade ...