Electric cars and other fuel-efficient vehicles certainly have plenty going for them, but all that reduction in fuel consumption also has the side effect of reducing the money earned from gas taxes, which has prompted folks like Oregon governor Ted Kulongoski to turn to some some alternative solutions to keep those funds rolling in. In the case of Oregon, Governor Kulongoski is proposing a mileage tax that would eventually replace the gas tax altogether, and make use of GPS units to determine just how far each person travels and bill them accordingly (Oregon is pr