Wireless Signal Boosting - or How to enjoy working in your backyard, too!

My network configuration at my country home is wild, or wierd, depending on how you look at it. I run a LAN between three buildings, one of them with 20-inch deep rock walls. Wireless transmission across the area can be, at the least, challenging.
Believe it or not, I've solved the problem with cardboard, scissors, aluminum foil and a glue stick. No kidding. The final result looks like this:



Now, when I want to use the laptop in the office, in the living room, out in the backyard with the dog for company, no problem. What to know how to 'do it yourself'? Take a look at this video: