Getting rear-ended may never be your fault, but that doesn't mean it's not a pain in the ass to get a busted bumper fixed. One way to help avoid such situations is with a product like Sudden Stop, an array of ultra-bright LED lights that reside on the left and right sides of your license plate. Sudden Stop works by detecting G-forces, meaning it doesn't hook into your existing brake lighting system. If it senses a certain level of G-forces from you slamming on your brakes, the bright LED lights will flash and warn the driver behind; assuming they're not busy texting, it could provide enough advance warning to prevent a collision. The Sudden Stop is battery-powered and available for $30. [Product Page via TRFJ]