Today you will serve all the customers who come into your store and help them with their business. Some will buy merchandise from your store. Others will sell you produce and goods to you. There is not much specie (cash or coin) in Virginia, so most of your customers will want to purchase on credit. You will have to decide whether to give them credit in your store. Everyone uses a credit system to make the economy work. You keep track of all your store's transactions in big ledger books.