You can pay in any currency you want or you can actually run currency account, I do a lot of travelling so I keep Canada, USA, Euro, and Mexican accounts.
A new feature is digital cards, you can add and delete them in seconds. They run off the main card but you can do things like pay for a hotel room and then cancel the card. Any subsequent charges would be denied.
So you can make a digital card for an online subscription and call the card Netflix, then whenever you want you can cancel that digital card and Netflix cannot charge your real card.
I use digital card whenever I sign up for anything that I think will be hard to unsubscribe to.