Whether you're an iPod Touch user on an out-of-town trip, or even if you just forgot to pay your internet service bill, sometimes you'll do anything to find a sweet spot of wi-fi.
We've seen shirts made with the explicit purpose of seeking out where the wi-fi is, but you can't possibly wear that shirt everyday, now can you? (Don't answer that... we don't want to know the answer)
Instead, take a cue from New York's own "MACGEEK" up there and turn that wi-fi sensing t-shirt into a wi-fi sensing car decal.
By cutting all the goods out of the t-shirt and sticking it your car's window, you ensure that no matter where you travel or what clothes you're wearing, you'll always have an easy indication of the signal strength nearby.
On second thought, the people behind you on your afternoon commute might be tempted to pull out their laptops, resulting in a nice little rear-end fender bender for you, MACGEEK.