[gosub100]

For many years it was one of the entry-level jobs for pilots. "check runners" were essentially overnight couriers that would fly everywhere, even to rural areas, collect bags of checks and take them to major branches where they were cleared.

I remember an article, probably from 20 years ago, warning people that the check infrastructure was about to change and people who were "floating" checks for 2-3 days (relying on this behavior) weren't going to be able to rely on it any more. I think that was when they went to electronic scanning at the bank itself.