Like a lot of other people here, I'm also a one-item-only person now.
I used to have duplicates of items I liked but never used more than two of the same items in an outfit so slowly have sold off all my duplicates.
Its sad cause the outfits where I did have mora than one of the same item used for it, I won't be able to re-create.
I also have made a few acceptations to keep duplicates for a few of the older items due to nostalgia and evolving items as there are so many poses with those.