I love geek stuff, but I do not have it in me to wear the Wi-fi Detector Cap offered by ThinkGeek.
To wear a cap that has a glowing UL display showing the signal strength of Wi-Fi hotspots is as bad as wearing a Propeller Beanie Hat.
Let's not even talk about usability of this Wi-Fi detector accessory. You need to take off the cap or look into a mirror to see if you have a signal.I would maybe consider wearing the Wi-Fi Detector Shirt that has been available for a while. At least you can look down on the shirt to see the signal strength.
More details on ThinkGeek.