ThredUp.com is offering new customers $15 off any order when you use promo code JUNE15 at checkout. You can score free shipping if you spend $50+ or just pay $2.99 shipping for 1 item and $.99 for each additional item. Clothing starts at $3.99!
I have used ThredUp a few times recently and everything I have received has been in GREAT shape! I've been able to get Gap, Crazy 8 and Osh Kosh clothes for next to nothing!