Schoola (a site that sells gently used kids clothing and donates a portion of the sales to schools throughout the country) is offering up a FREE $15 credit to all new members when you sign up through this link. Even sweeter, through midnight PST, you can score free shipping on all orders - no promo code needed!
Just head over here to sign up and browse through the available clothing options! They have sizes that range from 12 months through size 22! You will be able to apply your $15 credit to any order immediately and you should be able to find plenty of options under $15! That means you could pick up some FREE kids clothing and score free shipping!
I picked up a Ralph Lauren dress for our daughter completely free after the $15 credit!