Before travelling to a new area, spend time learning about your new environment. Depending on where you go, there might be a few things different from your daily life style.
Here are a few tips for getting around Germany.
Germany practically has a train station everywhere. Their trains are very extensive and connect the different cities and towns of Germany.
InterCity (or, IC) and InterCity Express (or, ICE) trains run every single hour. It connects a majority of Germany's cities. The InterCity Express trains can travel up to 300 km per hour. Just like other trains, they are crowded during rush hour. It would be a good idea to avoid traveling during the mornings and afternoons.
Reservations can also be made for the train systems before the train departs. Your tickets will be cheaper if you reserve them several days before traveling. Sadly, these tickets will only be valid for one service.
The autobahns are just like highways. If you prefer traveling by cars or taxi and of the sort, the autobahns are perfect for you. Passenger cars don't need to pay tolls when using the autobahn and it doesn't have a speed limit. Feel free to drive at your pace. If you're up to driving fast just stay on the right lane and drive slowly.
And remember, Germany also requires hands-free for cell phone use.
OTHER WAYS TO TRAVEL & HELPFUL TIPS
You can also travel by bus or coach in Germany. The buses allow for travel to smaller cities. Central bus stations are normally found near the main train stations and private own companies have their own terminals. They're not that expensive either and you get a nice tour of the area.
Germany is also made of extensive river routes which allow for travel by ferry. Although a ferry will not bring you to every city, it is still a nice addition to the trip.
Remember to exchange your currency to what is accepted at your destination as the exchange rates are normally higher there. In Germany, the currency you are looking for is the Euro.