I don't know for sure about the drivers license thing, but most all European countries allow just a regular drivers license so I'd venture a guess and say it should be OK in Italy. As for the Passport, it is a very small object that can be safely carried on your person. Just take it with you and then if you run into some problem that might require an official ID you have it with you. Money belts are something I used a lot in Europe for valuables, cash and passports. it was always hidden on me and was not visible and nothing that you might put down and then forget to pick it back up in different locations. I just had excess cash in it but always had some money in my pockets, divided up evenly in each available pocket so if I was pick pocketed it would only be a small amount of my money. That stuff can happen when you are concentrating on all the cool stuff in those different countries.