Some moron actually spent a (relatively) considerable amount of time and effort developing paint that blocks wireless signals.

That's a wonderful idea if you live in a windowless building; ya dipshit. Do I need to paint the ceiling too? I'd bet a finski that it comes in a range of vibrant colors with oddly similar sounding names: deep charcoal, moonless midnight, and Wesley Snipes.

It also seems to have slipped by this forward-thinking product development department that houses have interior walls. So there you are painting your entire house one color, fervently preventing the hordes of hackers at your virtual gates (because your home network is, apparently, the best in the universe); and you can't even get signal in your own living room because the three rooms between your dumb ass and the antenna are covered in Information Age prophylactic. You dickass!

Still, this is probably the best alternative you have. Honestly. I mean, until someone comes up with a way for you to protect your network with a key...or maybe a password...if only there was a way!