P.B.
Hi,
You can always take things to a resale store like Once Upon A Child, see what they give you for the pieces and then you can decide if you are happy with the amount they want to give you. It will give you also an idea how much you can ask for it on Craigslist. Craigslist seemed to be really good for us for selling larger pieces like stroller, high chair, pack'n play. Clothing seemed to be a lot easier to take to a resale store and selling it there.
Good luck!