YOU CAN BOOST THE SIGNAL OF YOUR WI-FI BY USING A CAN

If your router still won't reach far enough, you can extend its range with simple DIY (do-it-yourself) tricks.
You can use a beer can or any beverage can to extend your router's range. The results won't necessarily be mind blowing, but you should be able to eke a bit more distance out of your Wi-Fi network with minimal effort.

Read more: http://dsc.discovery.com/gear-gadgets/boost-your-wifi-signal-using-only-a-beer-can.html