We begin with Costco, who showed impressive fourth quarter e-commerce growth against a backdrop of rising wages. From there, we cover two struggling retailers seeking answers--Mattress Firm and Barnes & Noble. We finish by discussing Stitch Fix, who showed remarkable growth (and a profit) in their fourth quarter and unveiled a few new initiatives for their next fiscal year. Our podcast is presented this week by Blinkist and AdRoll, the e-commerce growth platform (visit adroll.com/retail for more information).