This is not the first time we talk about pocket knives (see Featherlight), because we believe that it is a must-have in a car, not for safety but because it can come in handy. The Mini Covert Automatic by Gerbert is a sleek black tactical knife with a hard anodized aluminum handle and a stainless steel blade. It is automatic, features a safety lock, and is small thus convenient. But more than that it is nice and simply well designed. Price tag: $60.