My wife and I will be traveling to Lucca with my mother-in-law and my 4 year old. We're flying into Rome, spending a night to recover in a hotel we're familiar with near the Termini, then taking a train to Pisa to pick-up a rental car. The thought of schlepping a booster-seat for my daughter all the way to Pisa isn't appealing. Is there a way to ship a booster to the Pisa train station and meet it there before I pick up the rental. The only car rental place I've come up with that offers boosters is Hertz, which is much more expensive than other companies.
Any ideas?