Sears KidVantage
The KidVantage program at Sears gives perks to those who buy kids clothes at the store. Once you join the program they will replace any kids clothes with the same size if your kid wears a hole in them. So you cannot upgrade to a bigger size as your child grows, but you can swap beaten up threads. I don't think stains count.
Every time you spend $100 on kids or infant clothing or kids or infant shoes you get a coupon for 15% off your next kids or infant apparel purchase. Look for the coupon at the end of your receipt. Not sure when it expires.
Sign up for the program at any Sears' register. Read more about the KidVantage program here.

