Dear Ziners that replied to my question,
We will be gone 21 days but will only have 4 nights in Prague (in Old
Town). My husband always calls a week before we leave to get any balance on
our credit cards and then pay them off before we leave. We just got our
first debit card (tried it out for cash and it worked) to use on this trip.
We will attempt to use it more than cash advances. I had read some time ago
about contacting credit card companies before a big trip, so that is taken
care of as well.