In May, Advocate readers got a list of spots where they could access free wireless Internet connection — when you’re here in the hood you can count on faves such as Cafe Brazil, Green Spot and White Rock Coffee shop. But what if you are in unfamiliar territory — say, Frisco — and you have a sudden need to check your e-mail? Thanks to those lovable nerds at thinkgeek.com, you don’t even have to open your laptop to see if there’s wi fi access about. This Wi Fi Detector Shirt does the work for you.