We got a flyer a couple of months ago - they take clothes & household linens, which they buy by weight, & although they don't say it, I'm pretty sure they're resellers.
I've sold Lulu Guinness & Vivienne Westwood stuff on EBay - definitely worth hassle. The key is selling at the right time. Evening wear and fancy pants clothes Spring/summer for those off to weddings, designer bags November/December for Christmas. Try Bang Bang or Beyond Retro, you can sometimes negotiate with them if it's really top notch stuff and they are short on stock.
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