Walmart takes up to 50% off a selection of men's, women's, and kids' activewear. Orders of $35 or more qualify for free shipping; otherwise opt for free in-store pickup where available. A couple of best bets:

Avia Women's Active Cold Weather Pullover Hoodie for $12 ($3 off)

Russell Men's Premium Fleece Pants for $13.99 (pictured, $2 off)