Re: Desktop. Just desktop.
One of my student did the same with PDF files. His desktop was completely covered.
I asked him to clean that mess.
A couple of days later, I see him smiling at me. I go to his desktop and he shows me proudly the piles of PDF he made, thematically sorted.
First, I thought the guy was stupid (I was expecting folders and subfolders).
Then it occurred to me he had another way of thinking but it was perfectly fine.
Lesson learned.