I started to sell my stuff on craigslist.com because the consignment shops were way too picky what they would take. My daughters clothes are in very good condition (she freaks if she gets a stain) and most are from either Gymboree or Children's Place. The consignment shop was not helpful and I was told that they would only accept winter clothes now.
I got really annoyed because why would I have winter clothes to get rid of when summer just ended?
Good luck with your search.