There was a legend I heard of in an engineering office. There was an engineer at this company I worked at, long before I was there. On the first day of work, he created his first file, file 000001. He pulled out a notebook, and wrote the file number and the document title. Later that day, he moved on to file 000002. And so he continued. For many years, one document after another, all in sequential order. No one ever bothered to inquire about his numbering system. He simply sent files off when needed, renaming as necessary. No one ever needed to poke through his work computer. Then, one day, he got laid off in a company downsizing.. He simply took the notebook with him, took it home, and burned it.