If you’re “old” like me (ugh, eighth rezday in two days), you’ve likely experienced a time where the attachment points you used actually mattered. In those days, you could wear one item per attachment point and that was it, no “add”.
Many creators were nice enough to bless us with multiple identical versions of their product, for different points. Most famously: necklaces came in chest and spine versions.
We don’t need those different versions anymore. So try to find them and delete them. I’m backing up every set I have, and then delete what I don’t need. So when it comes to necklaces: chest in, spine out. Easy win!