So I was walking around at walmart yesterday and i came across this little gadget from iogear. Little device you put on your keychain, push a little button and 5 led's on the side light up with your signal strength within range of a wireless network access point, and has a filter to block out other 2.4 GHz wireless devices such as phones, I was so tempted to buy it too, 20 bucks at walmart. Thought that was kinda funny.