For those of you in New England, you might be familiar with the Rugged Bear. It's a high-end kids store. From now until 11/25, you get 20% off EVERYTHING! Now honestly, most of their regular prices are very sky high - but you can find some great things on clearance. Couple those prices with the 20% off and you can get some pretty decent kids clothes for very little.
To shop online or find a store near you, check out The Rugged Bear Online.