The best strategy to avoid paying interest on your credit cards is:
D. Pay the full balance each month.
Explanation:
1. When you pay the full balance on your credit card each month, you avoid accruing interest charges on any outstanding balance.
2. By paying the full balance, you are using your credit card as a convenient payment tool rather than as a loan, which helps you avoid falling into debt.
3. Making only the minimum payment (option B) will result in paying interest on the remaining balance, increasing the overall amount you owe.
4. Having credit cards from two different banks (option C) does not directly impact interest payments; it's more about diversifying your financial options.
5. Paying online (option A) is a convenient way to make payments, but the key to avoiding interest charges is ensuring you pay the full balance monthly.