Control Mac with a wave of your hand

The program is called FluidTunes and allows you to manage the iTunes library in your Mac with just hand movements. All webcam assistance works. Holders of a built-in camera are simpler, but for those who have none, you need to find a camera compatible with QuickTime.
The principle of work, it is also a presentation:


To start working, just quickly start waving your hand left-right in front of the camera. After that, the welcome-training window will disappear and you will be taken to your iTunes music collection in CoverFlow mode.

The most pleasant is that the program is absolutely free. And honestly, it produces a wow effect when you start using it.