Now that summer thunderstorms are here, make sure you plug your computer, router, printers, and other equipment into a surge protector or even better, a battery backup. These are great because they keep a power surge from zapping your equipment during a power flicker and provide a few minutes of battery power so you can safely turn off your computer. They are a little more expensive than a power strip but a lot less expensive than replacing your computer’s power supply or motherboard.