Gracey,
I love CW's idea of having a pile for her to take with her. Truly you are a patient woman to put up with this MIL. Shame she isn't MIA (
)
I don't know what I would do if someone invaded my privacy to the degree that your MIL has/does but she is not minding the normal boundaries of her married son and his wife.
I am saying a prayer that you keep all the progress that you have made so far fresh in your mind as you speak to her.
All the best,
Petunia