Visiting Milan Italy? We found the MilanoCard was worth getting.
Carol read about it on the train from Zermatt to Milan so ordered it online.
The downside? As hard as I tried I couldn't find a map to see where to pick up the card in Milan Central Station - they only had a video! After several false starts I finally found the correct place to pick up the card.
So ... look into getting the card ... and definitely figure out where to pick it up before you get to the train station (or airport)