Just Say No to Abuse Declaring War on Terrorism.
Some customers do ask for a receipt .
Have the capability of handing out one if asked. Receipt books are very inexpensive and can be purchased at office supply and discount stores. But you can also keep track of your sales by using a sales receipt book. On the book you can list the sale made to the customer and keep the duplicate copy for your record. The totals on the copies should be added at the end of the day.