Get everything out of master bedroom that you do not want. Box it up and put it in the garage.

Start going through the house and identifying things you do not want. Obviously you do not want her clothes. Box them up and clearly write clothes on the box. Put it in the garage.

Treat her stuff like it was your stuff. Respectfully.

"What is best for my kids is best for me"
Amor Fati
Link to quotes: