Target cuts up to 29% off a selection of men's, women's, & kids' backpacks, with prices starting from $12. (Prices are as marked.) Shipping starts at around $6 or get free shipping on orders of $50 or more. A couple of best bets:
Kmart offer the Concourse Southfield 3-Piece Luggage Set in Red or Charcoal Gray for $39.99. Opt for free in-store pickup to avoid the $16.16 shipping fee. That's $20 off list and the lowest total price we could find. This set includes a 21" pilot case, a 22" expandable upright bag, and a 22" duffle bag.