Do you use a cheat sheet for writing?
My main character is part of an extended family and the stories continue over several years, so aside from a rather extended Cast of Characters with descriptions and such so minor characters still have the same hair and eye colors and such, I also have a genealogy program so I can keep track of how everyone is related to one another. So my cheats are mainly to keep track of characters, though I do like yours. It may get included in my writing notes.