Just yesterday, I was helping this manager set up a new system of ticket line (the kind where you get a ticket number and wait for it to be called in a panel). He complained that they didn't have a proper printer just for these tickets, so he made the tickets in excel and printed them. To the right of the number, someone would mark the service, from a list of 6.

"Why not use a single letter prefix and print different piles of passwords? (A01, A02, A03; B01, B02, etc)"

That'll use too much paper. We'll also need more tickets than before

"That will use less paper, you can print 2 tickets using the same space. Also, the amount of tickets always depends on the number of people that show up, but you'll have a better idea of which service is being needed each day"

Mr manager didn't like the idea and moved on to another problem.