Money. It’s so interesting to me what happens to my thoughts about money when it’s no longer American money I’m dealing with. Changing to Turkish lira (YTL), as I did here at Istanbul's oldest book market, it’s almost as if I have play money, Monopoly money. When I crossed the Iron Curtain to visit Czechoslovakia in 1972, I encountered hard currency’s double standard for the first time. I was required to change so many US dollars for each day of my visit at government rates; but once inside the country, people were often asking me to change my dollars at a much more lucrative black-market standard. I’ve been in Italy when the lira-dollar exchange rate was great. But now with the euro, it’s not so great. In Cuba, there are two currencies, both called pesos and both indicated with the $ sign -- one for residents, one for tourists. Alas, no American bank-based business is available in Cuba. No using USA credit cards. And no relying on the current saving grace of tourists seeking good and easy exchanges elsewhere in the world -- the ATM.