Cash sales refer to sales that incur payment on the spot. A customer can use cash, credit card or cheque to settle their account. Sales that aren’t cash sales are made with the assumption that the client will pay later, either when their goods arrive or in installments over time.
For example…
Keeping the cash sales turning over means you are not waiting for payments. It doesn’t have to include only the folding stuff, but can include direct bank to bank transfers.