Checking accounts are designed to help you manage everyday transactions and aren’t usually where your money grows. But that doesn’t mean you should ignore the interest rate entirely. After all, if you have money sitting in the bank, you might as well earn as much interest as possible on it. Knowing the national average checking account interest rate helps you see where you stand. If your current rate is at or below the national average, you may want to shop around for an account with a better rate. Toda ...