As you probably know, America is famous for its motto of being independent, fast, and efficient. All of the fast foods, the services they have are to serve the purpose of having a very beneficial life.
I am not a big fan of fast food, rarely eat in it although I gain weight anyway. But I love their phone system. They set a service where you can even fill money to your phone through the customer service and they will bill it to your debit or credit card, and it doesn't cost you any money, so in case you in need of phone money yet you can't go anywhere, you can just call them and they'll do the work for you.
Somehow I wish the system in Indonesia is as easy as in America. Sometimes, though.