At my building, out of all the different post office locations there is only one that really gets a lot. That location gets roughly 100 pieces a day and the pre-loader has to scan and bag. I don't deliver there so I'm not sure what the driver does, but as far as what Ive witnessed the loader do, is they stack and then scan at the end of the shift. Funny thing is that out of the 6 cities in my building this city is the smallest real town, so I wonder why only this location has the packages go to the post office. Does anyone know what determines this?