private void TenderChange()
        {
            List <int> cashBack = items.CalculateChange(items.Balance);

            Console.WriteLine();
            Console.WriteLine("Thank you for your purchase(s)! Your total change is " + items.Balance +
                              " and is now refunded to you in the form of:");
            Console.WriteLine();

            if (cashBack[0] == 1)
            {
                Console.WriteLine(cashBack[0].ToString().PadRight(3) + "  TWENTY");
            }
            else if (cashBack[0] > 1)
            {
                Console.WriteLine(cashBack[0].ToString().PadRight(3) + "  TWENTIES");
            }
            if (cashBack[1] == 1)
            {
                Console.WriteLine(cashBack[1].ToString().PadRight(3) + "  TEN");
            }
            else if (cashBack[1] > 1)
            {
                Console.WriteLine(cashBack[1].ToString().PadRight(3) + "  TENS");
            }
            if (cashBack[2] == 1)
            {
                Console.WriteLine(cashBack[2].ToString().PadRight(3) + "  FIVE");
            }
            else if (cashBack[2] > 1)
            {
                Console.WriteLine(cashBack[2].ToString().PadRight(3) + "  FIVES");
            }
            if (cashBack[3] == 1)
            {
                Console.WriteLine(cashBack[3].ToString().PadRight(3) + "  ONE");
            }
            else if (cashBack[3] > 1)
            {
                Console.WriteLine(cashBack[3].ToString().PadRight(3) + "  ONES");
            }
            if (cashBack[4] == 1)
            {
                Console.WriteLine(cashBack[4].ToString().PadRight(3) + "  quarter");
            }
            else if (cashBack[4] > 1)
            {
                Console.WriteLine(cashBack[4].ToString().PadRight(3) + "  quarters");
            }
            if (cashBack[5] == 1)
            {
                Console.WriteLine(cashBack[5].ToString().PadRight(3) + "  dime");
            }
            else if (cashBack[5] > 1)
            {
                Console.WriteLine(cashBack[5].ToString().PadRight(3) + "  dimes");
            }
            if (cashBack[6] == 1)
            {
                Console.WriteLine(cashBack[6].ToString().PadRight(3) + "  nickel");
            }
            else if (cashBack[6] > 1)
            {
                Console.WriteLine(cashBack[6].ToString().PadRight(3) + "  nickels");
            }
            Console.WriteLine();
        }