Remotely control a Mac with Mac.remote for Android

Many of us rely on our computers as entertainment hubs for watching videos and listening to music. Having a remote control to manage simple functions like play/pause, fast-forward, and volume makes a lot of sense. Every now and then, you'll see a physical remote control included with a computer system, but they're pretty rare.
In the absence of an actual remote control, you can use an Android device with the Mac.remote app to control many multimedia applications on your Mac. You can even put your Mac to sleep, shut it down, and control the screen's brightness.