Project: Plans filing, down to the last inch or so

Well finally, I am about done with the plans filing project. I started with a cart with several inches of mylar sewer plans stacked on it and now I'm down to just an inch or so. The project has been relatively interesting though, because I've found several projects I recognize from around my neighborhood and also become more familiar with the "billion" or so sewer districts they have (ok, so there's maybe only a number of named districts, but they change abbreviation quite often, example: Mission Township Main, also known as MTM, MSD, MMSD, MT, and numerous others.) I also made this 'nifty' guide for finding out which district goes where: