To access this feature, you must be on Goodshuffle Pro Standard or above.
Goodshuffle Pro is designed for quoting and invoicing clients for rentals, but there are tools within Goodshuffle Pro to quickly charge clients for 'terminal' transactions.
First, create a 'Template Project' with the client 'Terminal Sale' or 'Cash Sale' (for example) - This'll allow you to report on how many often/how much you've made from 'terminal' transactions.
Next, when a client comes to purchase boxes or other 'quick sale' items, duplicate the order, and create a Line Item Group date for the date of the sale. Then, add the items and services the client is using.
Finally, either type in the customer's card information to capture a charge on their card or, if they pay in Cash/Check, record and 'Offline Payment'.