L. Matheney from LemonSweetJewelry says
I renew regularly. I am not sure if there is a point. They are not about to expire, I just like to get them near the front of my shop.
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You can just rearrange your shop instead :)
All of my items renew sold automatically, so daily. If a few days go by without a sale, I renew my oldest listings. Otherwise, only when they are about to expire.