invoice to my walk-in off-line customer

Though ZC is a web shop solution, it happens that somebody wants to buy something straight from your location. Somebody in your neighbourhood or somebody like that. They can’t understand why they should go to the web, log in and so. They just want to drop in, pay cash and take the product and go. That’s great. Every customer’s welcome. But I want to create an invoice for the sale for the accounting. And I want an invoice in the ZC-format, so I can have the following numbering. Here every invoice need following numbers. What I should like is to go into the admin and create a customer account, set in the order and then print out an invoice. But I can’t do this. Well, I could make an account the ordinary way, but then I have to make a fantasy email, address and so on. I don’t want to have two invoice systems, one for online purchases and one for walk-in people. I Hope anybody understands the situation and have any suggestion.

Well, I could make an account the ordinary way, but then I have to make a fantasy email, address and so on. This is a way to do this as if you have a Brick & mortar store and use ZC to manage the inventory and as a POS register etc.

Create one called say 'cash' or another...

when we do art fairs on monday i enter all the invoices for each person, or if we didnt get their info then they go under that fair's name.

also i have installed the COD payment mod thats included in the package and use that as the payment.