Stork Exchange is a great place to shop for high quality, brand name, great condition "gently worn" children's clothes. They are meticulous about which items they accept, so all of the clothes are a brand name in excellent condition. They have names like Carter's, Gap, Old Navy, Janie & Jack, Little Me, and many others ranging from infant sizes to children's size 8. They also carry toys, videos/DVD's, games, puzzles, shoes, hats, mittens, strollers, high chairs, cribs, potty's, and almost anything you need for your child.
The prices are higher than most consignment shops, but they do discount them based on how long they have been on the floor. It is worth the money to get the recent fashions in such great condition.