German travel learnings

Things I have learned in traveling in Germany.

1. German kezboards have the y and z keys reversed. This often seems to add a German 'accent' to the tzping.
2. Changing locations in the morning (moving stuff from one city to another), and jumping right back on the train again to spend the afternoon in a different hot and crowded city an hour away is very stressful, and not a good idea.
3. Bread rolls sold in the store in sealed plastic packages ought to be baked before eating.
4. Adding bubbly (carbonated) water to coffee substitute does not make it taste better.