Hello all,
I have a couple quick questions that I could use some guidance on:
- If I want to use my phone's wifi and GPS (Samsung s4) for directions and emails home should i simply remove the SIM card when I depart the U.S.? Is there a better way? 
- I have not purchased train tickets yet for my trip from Paris to Venice. If I purchase them now do they email them, mail them, or is there a will call location? I'm concerned about buying them and them not arriving on time. 
- I will be renting a car in Venice to drive to Tuscany and then Rome. I do not have an international driver's license. Will this be a problem? 
Thanks!