Losing your keys can be a huge annoyance — whether they've slipped into couch cushions or just been left in an odd place, searching for them can cost you valuable time. Hone ($50) can help you get that time back. This small Bluetooth 4 dongle pairs automatically with your iPhone 4S or iPad 3 using a free app, giving you an audible vibration or alert when you tap the "Find" button, so you can spend less time looking and more time doing. [Scouted by Sebastian]