Which storage room will we face?

It's not just closets for my mother. Her house, built for a rich family as a summer cottage in the Berkshires, has 10 bedrooms and a Study now being used as a bedroom. Two of those bedrooms are devoted to her stuff, not that all the rest of the house doesn't have carefully chosen treasures mixed with bargains and cast offs.
My sister convinced me to come and work with her. Ann is the only one that can talk our mother into any change. She is willing to understand what is important to our mother while the rest of us can't stand to face the piles of worldly possessions.
Hearing her renewed interest in the Catholic faith, I tried, "Lay not your treasures up where dust corrupt and thieves do steal," but she just felt bad about the things that had been spoiled by, say thieving mice.
We are going to pack up the doll collection and send it to a cousin who has expressed interest. Hopefully some of the dolls are worth enough money to pay for storing the others.