We see countless smartphone accessories released every year but how many of them are actually useful? The latest accessory from Nokia seems like it could really come in handy, however, because it will help you keep track of all the things you’re most likely to use. Nokia’s new Treasure Tags are matchbox-sized tags that you can attach to your keys, wallet and other important items to make sure they never get lost. The Treasure Tags have two key features: The first is the ability to connect to your smartphone via Bluetooth and NFC and then issue an alarm if you try to leave your house without your tagged items. This means that if you ever bolt outside of your house