Came here with my wife,
Our foster kids had a lot of clothes that didn't fit them! Since my wife works nearby, she heard of this place. What they do is buy some of your used kids clothes, and resell them. We had three full trash bags of clothes. Out of all of that. They only bought a small percentage, we ended up getting about $20.00 dollars. It was OK, $20.00 dollars for the girls to buy them new clothes.
Once Upon A Child is very picky with the clothes they are going to buy. Very understandable, they don't want to look like a goodwill store. The clothes they sell are in very good conditions to almost new. The girls ended up spending the 20 bucks there. So they had fun!
This is a good option, when you want to get rid of some clothes that no longer fits your kids. Also not a bad place to find some decent clothing for your kids.