I was thinking about taking a couple hundred US and using Visa for most spending. I would use the cash for mostly snacks and small things. I would use Visa for dinners, purchases etc. I plan on getting groceries and taking snacks, sandwiches, etc to the parks so we don't have to spend a lot on food there and then get a good meal for dinner. I was thinking about $200 US, but might take a bit more and I am not sure if I should get traveller's cheques or not. What do you do?