Right now, if you live in the U.S. and you're familiar with lock screen ads, it's probably from your e-reader, your PC, or maybe even your refrigerator. Plenty of devices with screens in them like to ...

Michelle is Lifehacker's Associate Tech Editor, and has been reviewing games, laptops, phones, and more for over 10 years. She is based in New York City and holds a master's degree from NYU. That's ...