Thanks a bunch for the info. I got on National and lowered my rate. I am going 9/22-10/3 and when I booked the car, I tried a few different codes and then the same codes, and the rate went back up again a few minutes later. For 11 nights my cost is $206.71 EI, full-size. When I entered the same codes I got a new rate of $221.66. Go figure, I reserved both for now and will call National about the reason why the difference. The rate I've had for a few months now was $241.48 and before that it was $260 something. Total savings about $54, yahoo. I used DC rate code and Buena Vista Internet code offer. Thank you again. Wendy aka jstmee