Everybody knows that most, if not all, of downtown businesses' customers arrive by car.  So it's intuitive to try to come up with a way to encourage drivers - who normally wouldn't venture downtown - to hop into their rides and cruise on down to Main Street to shop for wares.  If we could do this, just think of all the new business we'd be stimulating!  In continuing with this logic, it's also a given that it's impossible for would-be customers to actually get to downtown without the essential attaché to driving, gasoline.  So, isn't it therefore intuitive to suggest that if cities were to give away a little bit of gas to each customer – you know, to kind-of thank them for their generosity - then customers would find an overwhelming incentiv