The goal of a kit like this is to alleviate stress by making sure you always remember to bring the items you need to get through the day. It works like this: each smart tag connects to up to three taglets. For example, you can place a smart tag on your bookbag and then a taglet on your phone, iPad, and notebook. When you're leaving your house, tap the smart tag. If the light turns green, you have your three items with you and can leave. If it doesn't turn green, you can open the app to see what's missing. The Bluetooth-enabled organization system is weather-resistant and each smart tag holds a charge for up to two months. Taglets hold a charge for up to two years, but need to be replaced once they die. $120.