This little trick can be a lifesaver. Say you’re at a hotel, and they charge an arm and a leg for Wi-Fi per device. With Wi-Fi sharing, you pay for one and spread the love to all your gadgets. Or, if ...

Hidden Wi-Fi networks are a thing, and they don’t appear on your regular Wi-Fi network list. I realized this long ago, and I’ll explain to you what these networks are and how you can connect your ...