Credit card

This afternoon, I applied a credit card of Minsheng Bank. Before this, I have never had any credit card. On the one hand, out of the consideration of safty; on the other hand, I think it unnecessary for me. So I am so firm all the way, although many of colleagues around me have many different cards from different banks. To be frank, I didn't know more about credit cards. In order to make good use it and control my expense, I have to learn some via the Internet right now. After all, there are so much experience from others. Just FMI. Of course coins have two sides.