For those who are interested in applying a credit card, there is one I personally recommend
it has some attractive features
1. no annual fee
2. free travel insurance, which is super for those who travel a lot
3. no foreign transaction fee
etc.
more benefits are described here
https://www.gebuhrenfrei.com/Home/
please use this recommendation code in your application, which brings you additional 30euro initial bonus (as well as to me), only valid until 31.8.2014