Not sure if my situation is unique but let me explain before I list my suggestion.
I have a business on the side where I provide flying services. This could be a commercial flight at the request of a client, could be flight instruction, or even ferrying an aircraft from one point to another.
I have quickbooks at home, but the problem with that is that I need to keep track of all of my records and make sure they are entered correctly hours or even days later.
My idea for nBill is to bill right there at the airport when the flight is finished. I don't have an office at the airports I go to. Every airport has a computer with internet access. I'd like to be able to create and print an invoice on the front end as I am logged into my web site. I do like the fact that I can enter the invoice and it is emailed to the client, but some like to pay right then and there.
The short story.... I'd like to be able to create an invoice for my services from the front end and perhaps print an invoice right after I've created it.