Zero. Everything in my cupboard has been worn at least once. Just not necessarily by me I buy and acquire a lot of vintage and pre-loved clothes.

I try to wear my wedding dress on every anniversary. The last two we have been separated by distance, but I love wearing it. I spent months making it, I like to make the most out of it, by randomly wearing it out, and getting my photo taken with plush shark mascots outside the aquarium.

If I have something sentimental that I'm not wearing, I like to give it to somebody worthy, tell them its story, and hope that they will keep its legacy alive. I have a few clothes from my MIL that are like this.