At Target, buy one boys' or girls' school uniform item and get a second for 60% off. (Discount applies in cart.) Shipping starts at $4.99, or bag free shipping on orders of $25 or more (before discount). (In-store pickup may also be available.) A couple of best bets, with prices after discount:

• 2 Cat & Jack Girls' Long Sleeve Interlock Polo Shirts for $12.60 ($5 off)
• 2 Eddie Bauer Boys' Half Zip Sweaters for $25.19 (pictured, $11 off)