Of course, credit cards make it possible to pay for the product you like, with such cards you can easily go abroad, and satisfy many of your desires. However, a person who is accustomed to life on a wide leg cannot always reassure his appetites. And there are banks heated by the client, and begin to increase the credit limit. How not to might in debt? It is very simple to count your income. It is worth describing all income and main costs for food, utilities, road expenses, in general, the main articles, and see how much free money is left. Such an amount should not be in front of payments on credit cards, but 20-30% more.