The "Windsurfer"

[djrosen1]

Inexpensive way to focus the signals into and out of your wireless router.

http://www.freeantennas.com/projects/template2/index.html

Video: http://www.flixxy.com/diy-wifi-extender.htm

If THOSE guys can manage this, you or I can.

I haven't tried it myself yet, but I will soon.