The possibilities are unlimited. The software stores a history of every sale made and keeps it forever. You can review it at any time. The software supports a number of different sales taxes, and can both taxable and nontaxable items. It even does Tax by Area for those parts of the country that require such reports.
All employees are human beings and some produce more than others.
Not all employees should be paid equally. Certainly your top performers expect higher rewards for their contribution. With a computer system, commission reports come out automatically. Customer retention is an important part of your business. Regular mailings to customers assures your success.