$10 off your first purchase at thredUP! January 15, 2013 by Consumer Queen Leave a Comment Coupon Codes| More Deals| Download Savings Tool Bar | Black Friday Deals What’s the offer? $10 off your first purchase of practically new kids’ clothes at thredUP. Use code: SAVE10 at checkout. When? Tuesday 1/15/13 at 12:00AM PST through Friday 1/18/12 at 11:59PM PST. Who? New customers only, first purchase only Go here to start shopping at thredUP! Subscribe to our blog for subscribers only contests and deals.