Once you arrive in Germany, if you are American, you will notice that the German public transportation system is much more efficient and cost effective than that of America. There are many more options and for the most part, you can get anywhere any time. Keep in mind that you can purchase a train ticket from your current location to your destination and this ticket is valid for the train, bus and street car. ie. Take a train from Darmstadt to Hanau then use the same ticket for a bus from Hanau to Frankfurt.
Taxi Cab: Taxi cabs can be found around any airport or public location. If you walk up to a taxi parking area and there is a row of taxi cabs go to the front vehicle first. The price varies but can be expensive at times. The weekend taxi fees are generally more expensive than the fees on a weekday. If you can avoid using a taxi cab I would recommend it. If you are relatively pleased with the service provided by the cab driver a one or two EUR tip would be sufficient.
Street Cars (Trolley): Street cars were the first mode of public transportation in Germany. Street cars make frequent stops and have a map layout of each stop. Check the route and be sure the...