I work for a real estate development company. It is a business that creates a good deal of paper that must last for years. We've build apartment buildings and are currently operating them as much as fifty year later. Many of them had three and four mortgages and I've had to refer to these documents and been unable to find them.
I noticed that most of the staff will scan documents and then store them on our file server, usually in a place only they can find. Their idea is that the document will continue to be available where it will disappear into our disorganized paper files.
I've come in the tail end of several of our projects, dug some previous employee's computer out of the trash and copied critical documents onto the file server. I could never figure out which files are drafts and which were the final copies.