Man, Germany is specific and weird in some way. Here are 5 small "skills" which will make your life easier.
1. How to send "Einschreiben" (recorded delivery letter/registered letter)
The first rule of Fight Club is: you have to use "Einschreiben". If you want to receive a proper response to your request - use Einschreiben. It's not rocket science, I know. But for a person who has never used a post in his life, it's a tough task to make it right. Find out all the steps to send such mail. You are going to use it here a lot.
2. How to finish the city bike ride
It will save you a ton of time. I hate this. My average ride lasts 5 minutes and then I spend another 3 to park this bike.
3. Learn the plan and exits of Hauptbahnhof and Ostbanhhof
Next time I will die there if I would not manage this.
4. How to find 50 cents coins for laundromats
I thought it will be hard to accept using these public machines when you had your own for your whole life. But with this, I had no choice so I adapted. The real hardest part is finding 50 cents coins when you live in a cashless world.
5. Schedule doctor's appointments.
Easy you say. No, it isn't. How do you find a doctor? How do you understand their sub-qualification? How do you understand whether your legal insurance applies there? How to deal with different colors of doctor's prescriptions/receipts?
These are not the skills in the usual form. But these are the task you will be dealing with regularly. So 50 minutes you will spend on this will save you hours later.
Tschüss!