However, to make myself feel better I created an "All About Marra" form. I update it every time she has major changes. Even though our sitter knows a lot about Marra, we still update it for her from time to time. We leave it for anyone that is going to watch her, which so far has just been family!
I just created this in Microsoft Word, super simple... You could add anything to the list... We have found it to be super helpful.