Try this
- Identify the area that is full and separate personal from shared belongings.
- Agree on what can move, what needs another owner decision, and whether new purchases should pause while the space is reviewed.
A worked example
“The hallway cupboard is full. I can sort my shoes first; let’s discuss the shared bags before moving them elsewhere.”
An invented example to adapt, not a real exchange or a script you have to follow.
Before you leave it here
Do not treat clutter as permission to inspect private papers or dispose of another person’s possessions. Keep the practical storage problem distinct from judgments about character.