My mom had to move from an apartment into a NH rather quickly. My husband and I basically threw all her belongings into boxes, labeled them, and put them in our storage room. Most of her furniture we sold or gave away, as we really couldn't accommodate it, but there are a lot of small things like kitchen utensils that she will likely never use again. Every once in a while, she will ask for something that was (for example) in her top desk drawer, and I can locate it and bring to her. Sometimes her memory is amazing!
She likes to think that she will one day be independent again and need all those things, but I seriously doubt that she will ever be able to live alone or even in an assisted living situation.
I don't want to point that out because I'm sure it would make her sad - she's already sad that she doesn't have anywhere to keep all but just a few of her knick-knacks, photo albums, and such. Those things I would certainly hold on to for her. But the random things, the dozens of shoes she probably won't ever wear, the clothes that are too formal ever to be worn in a NH...how do I bring up the topic of letting them go without making her uncomfortable? We are running out of room for our own things, plus there is the possibility of moving.