We don’t have a big house, I de-clutter often and have to be clever with storage to find a home for everything. We have a small extension, made into an office as I work from home. Also has a sofa bed for when MIL stays.
I love MIL and we get on well. Lives a few hours away, doesn’t drive, so comes on the train for a week or so every so often. Has a small suitcase and tries to pack light, I’ve offered to keep some things here so she has more room in her case or can pack even lighter.
However the amount of stuff is now ever increasing. First just a pair of slippers and some toiletries, now hangers, handbag, dressing gown, shoes, etc, etc, etc. How to politely say, that’s enough!
I also had some stuff in there for the boot of the car, like an emergency bag if we break down, that I was still putting together. Some bottled water, snacks and blankets, first aid kit. MIL has been helping herself, again I want to be polite.