"Unexpected Green" Finalist: Highway Signs

Contest finalist Brenton Klik's entry is admittedly not a green "product", but its location certainly unexpected. Overhead the D.C. Beltway, highway notice signs are telling drivers "Slower Driving Saves Gas." Hmmm, for some reason I remember someone telling drivers this before. We can't tell whether or not these messages have green intentions or not, but we will take the help where we can get it - even if that means overhead the gas guzzlers on a multi-lane highway. Thanks Brenton!
P.S. Brenton - we hope you weren't driving when you took this picture!