Kohl's discounts a selection of workout gear to $10 or less. (Prices are as marked.) Most items are eligible for in-store pickup; otherwise, shipping adds $5.95. (Or, spend over $75 for free shipping.) A couple best bets, each available for pickup:
Fila via eBay offers its Fila Women's Quarter-Zip Comfort Knit Pullover in Grey/Pink, Peach/Blue, or Lime/Blue for $19.99 with free shipping. That's $35 under the lowest total price we could find for a similar Fila pullover elsewhere. It's available in sizes XS to XL.