I have approached it a little differently, LittleGTO. When my wife chose to move out, I immediately asked for her key to the house. I wanted to make it clear, that her moving out was her MOVING OUT. Even when she calls wanting something, say a blanket or a clothing item, I make it clear that I will give it to her personally or leave it on the porch. She even calls the house "Your house" when it comes up in conversation now. She walked in and announced herself the other day, I came around the corner with "excuse me". I wanted her to know that she is not allowed to simply walk into the home which she chose to leave, regardless if Daughter is here or not. I am not sure if that is true DBing style, but to me it is part of showing her the reality of leaving the relationship.