Have you gone through all those documents and items you copied, saved, printed, etc. in the early days of your research to see exactly where they were originally located?
Many of us, when beginning our research, do not adequately track where something was found. I recently came across a transcription of a will of an ancestor where I only listed the county where the item was located, the title of the book and the page numbers. The volume designation apparently was of no interest to me and neither was the format of the information (original, microfilm, transcript, etc.).
Completely those citations can help to correct errors and realize what was overlooked when research skills were less finely honed.