I would like to thank Autoslash.com for their service. I don't have the energy to find the very best price on rental cars. I find that Autoslash gets me a very good rate which I book about 3-4 weeks before the trip and then I can then just forget about it. If you are constantly digging and regularly using codes that you are not eligible for, you can probably get better rates than Autoslash. But for someone like me, Autoslash is a great service.