We are travelling to Italy in mid-September, 2015. We purchased a rail pass because it does pencil out for us economically. I have a couple of questions about the logistics of using it. I know that we need to validate it on the first day of use but do we ever need to validate again? Many of our trips will be on Regionale trains, can we just hop on and off these? Lastly for trip legs requiring reservations can we purchase the reservations on the day of travel or should it be done ahead of time? Thanks
Sharon