my wife and will be traveling to italy for our first time next month. a couple questions:

1. if we are traveling from city to city via eurorail, trenitalia and/or .italo - would you advise booking our tickets in advance? i'd prefer to just buy on site to keep things flexible.

2. i need an unlimited pre-paid data sim for 7 days. what would be the best carrier for this? any idea on approximate cost?

thanks so much in advance for your time =)