Hello. I'm from Florida and we all use personal cars here even to travel. So, I'm fairly new to public transit and getting around without owning a car. We are coming to Boston next week and we need to rent a car or do a car sharing to go visit Lexington/Concord. Can anyone advise on car sharing? I can't even start an account without my license and I'm a little nervous putting that information into an app that I know nothing about. Thanks so much!