Try the Dollar site with no code. I had a resie for October from over two weeks ago and read someone's post a couple of days ago and tried it. No code saved me $45. Once you make a reservation check every now and then to see if you get a better deal. The beauty of car rental reservations is that there is no penalty for changing or canceling your reservation. Also keep in mind that October is pretty far off and some of the deals are not posted yet by the rental companies...stay tuned to mousesavers.com too.