Many years ago I found myself unemployed, and had a year where I pretty much took any job I could find. One of these were in a sorting facility for one of the largest shipping / postal companies.

On my first day, the very first thing I noticed was how a select few companies / online stores accounted for something like 80% of ALL the shipment that came through the facility: Clothes (with Zalando probably making up half of the shipments, just an endless stream of Zalando shipments...), make-up, and baby / kids toy stores. The last one kind of took me off guard, but then again, local toy stores have been dying for years.