If you are heading to Target, I would check the girls section (unless of course you only have boys), because my store in Kent, WA had marked down quite a few of the girls clothing items to 70% off.
I also found the girls clearance socks had gone to 70% off too! I have been watching and waiting on these. I picked up several pairs for my daughter for back-to-school.
Keep in mind clearance selection and prices will vary by location, but I find that most stores have a nice selection of clearance in the girls department at any given time.