Over the last centuries, coins and notes were the dominated forms of currency in the human activities. There is, however, a growing trend for people now to use credit card in preference to the traditional forms of money because of the innovation of Information Technology. While it sometimes may raise some problems, the benefits are significant and outweigh the drawbacks. There are several bonus of using credit card in buying. One of these is helping people free of the heavy coins and large amount of notes. This leads to an easy and convenient buying experience. This is also worth considering that credit card is, generally, a safer way compared to paying cash as you need not worry about losing or being stolen. In addition, people are able to easily track their expense and transactions, this sometimes also help vouch for the fact that you have made a purchase when you look for after service without the original receipt. More importantly, having a good credit history is significantly important in the modern life, which offers you priority while applying various loans, renting a house and so forth. To many financial organizations, the public’s credit history would be an essential reference to evaluate individual’s financial situation and spending habits if most of people choose to pay by credit card daily, this is important to avoid potential bad debts and even financial crisis. Not everything, however, about the expansion of the credit cards, is positive. Perhaps the major problem is that people are able to spend the money that actually they do not have and it seems like “free money” as it needs not be paid off until the end of financial month. As a result increasing number of people get into debts. Indeed, the high Interest rate worsens the situation. It is common that the rate can reach as high as 20-25% on the balance you do not pay off at the end of month. However if persons have rational budget plan and pay off balance before