Credit cards with chips
Taking this cruise in June and seeking advice on using credit cards. We have a fair amount in Euros from last trip but see that they don't take them in St. Petersburg, Stockholm or Copenhagen. Our credit cards all have chips. Can we use them freely in most places on this tour? (I note the advice that we will need cash for Russia, but I mean the other cities.) We don't have or use PINs for these cards when we use them in the US, and we don't want to use them as ATM cards, so do we need to ask banks to assign us PINs to use them as credit cards only? I am worried we will need to bring cash in. several currencies, which seems really inefficient. Would appreciate any advice on this. Thanks!