I spent two days on folder structure and I'd do it again
Someone saw me defining folder categories and naming conventions before putting any files in them and said "just start dumping stuff in there and organize it later."
I have inherited enough "organize it later" file shares to know exactly where that leads. It leads to a folder called New Folder (3) containing a subfolder called FINAL_FINAL_v2_USE_THIS containing a PDF that's three revisions behind the one in Mike's Stuff/Old.
"Organize later" is "organize never." Everyone knows this. Everyone keeps doing it anyway.
The Dewey Decimal System has problems. You know what it doesn't have? A section called Misc_Books_To_Sort_Later.