I love shopping the end of the season clothes sales for my son. He is still young enough that he doesn't care if it's this years style. Most of the prices are as low as consignment sales (especially when Old Navy goes 75% off) and this way they are brand new never worn clothes.
Baby Cheapskate has a great post on her predictions for January Baby Bargains that you should check out if you too like to shop end of the season racks. Plus Baby Cheapskate has a post Winter Clearance Sales: What you need to know (Shopping Secrets) that is worth reading.