How often do you find yourself waiting to see if dad has his keys, wallet, watch or anything else he hasn't kept on his person before heading out the door? If it's a regular routine, Brookstone is selling a solution that allows him to stick Bluetooth tracer discs to his various belongings and use a free Radar map on his Apple iOS or Google Android device. That app can track up to 20 items at once within a 100-foot range, alert dad if one of his items moves out of range and ping him again if it returns. The Bluetooth stickers even have a buzzer and light, just in case dad's having a tough time finding the remote in the dark. This all assumes, of course. that the iOS or Android device isn't the item he's always losing track of.