This cool t-shirt has a wifi signal detector built in. When walking around the t-shirt will display the strength of wi-fi signals around you. This will save valuable minutes as it hunts for a signal for you. Once you see the signal bars increase you can then whip out the laptop and get working away. Too bad it doesn't show the SSID's and if WEP is enabled. It will detect 802.11b or 802.11g signals. Also the t-shirt is machine washable. Just make sure you take out the battery pack and screen before putting it through a spin cycle. 3 AAA batteries will power this beast for several hours.
