I'm considering renting a car in Leiria and returning it a week or so later in Caldas da Rainha. It would offer me the ability to visit many smaller towns without worrying about train and bus schedules, but I'd want to avoid toll roads since that will be just one more thing to stress about. Is that realistic? I don't mind driving on smaller roads, but also want to use my time wisely. Is it possible to rent a car with the toll thing on it, so I could just pay all the tolls to the rental agency when I turn the car in? I didn't take any toll roads when I drove in France. I did use toll roads in Italy and managed to get into the correct lines, but it was rather stressful, so I don't relish the idea of doing it again.
Thanks for any input you can offer!