Amazon offers the Febreze Plug Dual Refill Air Freshener with Gain Original Scent 1.75-oz. 2-Pack for $4.11 via the steps below. Plus, Prime members bag free shipping. That's around a buck under what you'd pay at a local store. To get this price:
  1. View the Febreze Plug Air Freshener 1.75-oz. 2-Pack for $5.38
  2. clip the $1 off coupon on the product page
  3. check out via Subscribe & Save for a final price of $4.11
Be sure to cancel your subscription once your order ships to avoid being billed for further shipments.