Did you know you could stream music and calls to your PC from your Android device?
I just got a Moto X, and it is probably my 10th or 11th Android device. I've never noticed another phone that could do this, but when I connected it to my laptop via bluetooth, I discovered that I could not only transfer files, but also stream music and calls as if it were a bluetooth car system.
This kind of rules, considering an iOS device would require some paid software to stream music via AirPlay to a computer. I really had no idea that this capability existed before today. I don't have a television or a stereo system at all, but I do have halfway decent computer speakers. A couple of years ago when I had a Mac and an iPhone, I used Seamless to continue playing music from the iPhone to the computer. With my current Android and Windows combination, I can simply switch to bluetooth audio.
I'm not sure how often I'll use it for calls, but it may come in handy some day.
Try it out if you haven't already.