Costco has the normal $25 off 5 clothing items promo plus select $10 off 2 items promo, plus some good clearance sale stuff at $10. If you combine at least 2 of one promo with 3 other clothes you end up with 5 sets for $15. Below are items that you can mix and match to qualify.
At least 2 of these Carter's PJ sets for $9.97
https://www.costco.com/CatalogSearch?dept=All&keyword=Carter's+kids
Or these hooded blanket sleeper pjs for $9.97
https://www.costco.com/CatalogSearch?dept=All&keyword=Hooded+blanket+
Than add a few of these to get to 5 total I'm your cart:
Only select sizes/colors on sale for $9.97 https://www.costco.com/andy-%26-evan-kids'-4-piece-vest-set.product.100745392.html
Only select sizes/colors on sale for $9.97 https://www.costco.com/andy-%2526-evan-kids'-3-piece-set.product.100730288.html
Or you can add other more expensive clothing options for men/women/boys/girls. All said and done you'll get $35 off. Obviously best if you get 5 $10 items.
https://www.costco.com/CatalogSearch?dept=All&keyword=Carter's+kids
At least 2 of these Carter's PJ sets for $9.97
https://www.costco.com/CatalogSearch?dept=All&keyword=Carter's+kids
Or these hooded blanket sleeper pjs for $9.97
https://www.costco.com/CatalogSearch?dept=All&keyword=Hooded+blanket+
Than add a few of these to get to 5 total I'm your cart:
Only select sizes/colors on sale for $9.97 https://www.costco.com/andy-%26-evan-kids'-4-piece-vest-set.product.100745392.html
Only select sizes/colors on sale for $9.97 https://www.costco.com/andy-%2526-evan-kids'-3-piece-set.product.100730288.html
Or you can add other more expensive clothing options for men/women/boys/girls. All said and done you'll get $35 off. Obviously best if you get 5 $10 items.
https://www.costco.com/CatalogSearch?dept=All&keyword=Carter's+kids