Just as a little aside, I'm still trying to learn some Czech for the trip that is coming up in less than a month. I have great difficulty concentrating, probably because I have less interest in the language than I have in other languages such as French, Spanish and Greek that I have studied. There are fewer "cognates" between a Slavic language such as Czech and English as compared to a romance language or even Greek. the names of the months are instructive. Also Czech is a particularly complex language. I probably won't get beyond the simple politeness level before we leave for Praha.