I'm planning to "give" my wife a Tuscan vacation for Christmas. I will tentatively schedule air trips, an AirBnB apartment, and a rental car for three weeks in Tuscany. The idea is NOT to make it a tourist-type vacation. Just go and live like an Italian for three weeks. So... Is there an airport where the car rentals might be most reasonable? I will fly anywhere, since I don't mind driving to my destination. Anyone know of a particular town that might be nice as a base of operations?