Usually I end up using Costco Travel because it ends up being cheaper than what I can get on PRICELINE. Not this time. The lowest Costco was giving me for the entire trip was a mid-sized for $438 for the trip. Pricey. I first entered in $25 a day and it let me (as opposed to the "fat chance" message), so I lowered it to $20 per day. Got it, first bid! (Being a PL veteran, I was a little disappointed in myself, maybe I left some money on the table). The total came in at $178 out the door, way lower that I budgeted so I took them up on the $4 per day upgrade to full sized. Oh, and it's with Hertz, IMO the best rental company of the big guys.