Hertz is offering through March 31st one free weekend day car rental! As long as the code PC#127595 while making the reservation.
Go here for all the details. You still need to pay for the taxes and bring it back with a full tank but what a great deal! Why put the wear and tear on your car if you don't have to? Take a weekend or day trip on Hertz!
P.S. Their site says redeemable once a month so who knows how long this will go?
