Originally Posted by am1108

You should reserve a car at the earliest time that you can, then you can keep looking for lower rates. Its usually free to make a reservation so long as you cancel the others at least 24 hours before the pick up time, you would have to make sure of course. I have seen rates rise and rates drop, it depends on the demand which is "gauged" every day. With Dollar/Thrifty its free to make reservations. Also preferably make your reservations online, although you can also call, NEVER just walk up to the counter without looking to see what the prices are online because the counter can be pricier than the online rate.