Casually checking the time
Sometimes you need to know what time it is but it can seem rude to glance at your watch when you have visitors. People could think you find them boring. Now there's this. You can simply install a receiver that decodes radio signal information to display the exact time on your laptop or tablet screen. Now you can casually walk over to your laptop and decode the time signal! You can also use http://kiwisdr.com/public/ for free