How do you use your iPhone/iPad as a remote control, and what do you use it to control?

When Apple introduced the iPhone, they also introduced Remote, and app that you could use to control iTunes or your Apple TV. Since then a variety of other, more wide-ranging remote control apps have become available in the iTunes App Store for controlling media, entire computers, and even complete household automation.

With the introduction of the iPad, there’s even 9.7″ of screen real estate to fill all your controlling needs.

Let us know your favorite remote control apps for iPhone and iPad, and favorite ways for using them in the comments!