After browsing through the posts here and the information on Mousesavers, I got excited about renting a car from National for the first and last days of our trip. A post here said that you should be able to get a reservation for about $30, which is only slightly more than we would have paid for airport shuttles anyway, and with our own car we can see some other places in Orlando. So I joined the Emerald Club through Capital One and put in a quote. After EC discount and taxes, a single day came to $51. (Since we are staying Mon-Fri, the free weekend day coupon code wouldn't apply.) Am I missing something?? What can I do to lower the quote?