Balancing your check book used to be the starting point for financial literacy, but many people who have bank accounts today don’t know what fees they are paying or that they could get a better deal by shopping around, and poor people pay far more than anyone else, according to research done by the personal finance site WalletHub. What to check in your bank accounts? “It’s not just the monthly maintenance fees that customers must track these days, but also the costs associated with retrieving money from their account, paying bills, transferring money, and even receiving information about their account,”…