The sandwich shop on campus years ago always had a long (20+ people) line, for almost the entire time they were open. There would be a few lulls each day, where you could be one of two or three people waiting, especially during afternoon classes.
To reduce line sizes, the sandwich vendors created an app and call-in number for mobile orders, which were prioritized over the counter service. The result was you would be one of two people waiting at the counter during the afternoon lull, while fifty tickets printed and the 2-3 employees solely did online orders. How you prioritize mobile orders might be the biggest factor in keeping/eliminating counter service.
This kind of service could be very useful since documents can be output in different formats or reformatted simply. I'm searching for a replacement for Word that can handle custom header levels/paragraph numberings in a really simple way. I write a lot of municipal code and would really like to find a tool that provides Word-level headings/numberings and can handle collaborative work in a simpler format. This might be the ticket.