Just some info for the anxious re. the buses from Pisa airport into town. I'd found the info on-line and realised that on Google the stops are shown with the name and number of the buses which stop there. We boutght bus tickets at the airport (booth on right after exit from secure area). The stops are shown electronically and announced. In addition the driver made sure we got off at the right stop. Couldn't have been any easier! For most tourists, it will be the LAM Rossa, of which there were plenty and clearly marked.