I know ISFjs have a reputation for being neat freaks, but the ESTjs I've known have been much fussier about neatness than the ISFjs... the ISFjs are actually more likely to clean everything at once than to stay of top of cleaning and never allow any messes. I realize that this can be a largely individual thing, but I do think certain types are more prone to being neat freaks than others. ESTj makes sense for being one of the most, if not the most, "neat freak" type.
What types are the neat freaks you know?