We're warning you: this is a pretty advanced little project. But if you've got the tech know-how, come inside to see how you can rig your home computer to turn on from anywhere in the world with a phone call.
For homebodys and the less tech-dependent among us, you might never need to turn on your computer from afar. But for those that travel or just otherwise obsess over their digital lives, the option to turn on your computer from anywhere means you can remotely check in at a moments notice without leaving the machine on 24/7.
Using only recovered parts, Instructables user geekone (love that username!) designed a contraption that allows him to wire up an old Nokia brick phone to his home PC so that when he calls the number (from any phone anywhere in the world!), his PC boots up.
If you think you've got what it takes (plus a few extra transistors and capacitors), check out the DIY instructions with pictures right here at Instructables.