3. ThredUp
ThredUp is a cool website on which you can use their clothing calculator to determine how much they’d be willing to pay out for your gently worn clothes (specifically women’s and children’s, in this case).
They only accept certain brands, but the selling process will inform you of whether or not the clothes you are trying to flog are on their accepted list.
All you do is send them your clothes free via FedEx or UPS (in a ThredUp cleanout bag) and receive up to 80% of your clothing’s value (they take a 20% cut and do the selling work for you). You’ll be paid in the form of shopping credits or PayPal payments.