The look for Geeks - and we count ourselves amonst their number - this season is a black t shirt, that lights up when a wireless hotspot is nearby. Yes, some clever bod has come up with a wifi detecting t shirt. Powered by a discrete battery back, the bars light up to indicate signal strength as you get near to an access point.
It's certainly a talking point, if nothing else. The Wifi Detecting T Shirt costs £19.95 from Firebox.
You might also be interested in the Wifi Detecting Wristwatch