I confirmed the exchanges for our two-week Montana/Wyoming trip for this upcoming summer before checking anything else. I was horrified about the airfares. I went ahead and bit the bullet and bought our airfare since we really do want to see these National Parks sometime, and might as well do it now since we were able to get the exchanges. Now it's the auto rental. I've never had to rent a car that didn't have unlimited mileage, but it seems that all the car rental companies are charging over the limited mileage .25/mile for the area. This could be quite costly since we'll be doing a whole lot of driving. Are there any other options? Does anyone know something I have yet to discover? Thanks for any input, good or otherwise!