I have a box system for jess, i have 4 boxes each with a picture and only bring one through at a time. Have a word with her when you are calm and tell her that your sorry about the carpet but that summer is only a baby and needs more than one toy at a time. The calmer you are the more she might see it from your point of view.
I will send her a pic of my living room at its messiest, she would have a fit and thats me trying.
I do feel for you, i couldnt live with my mum.