Losing your keys is no fun. You run around the house in a spastic fury looking everywhere possible only to realize that they are sitting on the kitchen counter or, worse, locked inside your car. If it’s the latter, you’re probably going to have to call AAA, but in most other situations, the Cobra Tag ($60) can help. The handy device works with a small tag that can be attached to any of your valuables (laptop bag, camera, purse) and a free app for your BlackBerry, iPhone, or Android device. If you’re missing your keys (or whatever the tag is attached to), the free app will give you the precise location of the item as well as make the tag ring. The Cobra Tag works the other way around, too. A simple button on the tag will send a Bluetooth signal to your missing phone and make it ring as well. Chances are if you have a smartphone it is probably almost always by your side, all the better to find your other lost items with. Just beep your keys in the morning when you’re rushing out the door and you’re good to go.