Amazon offers a Glade Sense & Spray 0.86-oz. Refill 2-Pack in Hawaiian Breeze for $3.90 with free shipping via the directions below. That's about $1 under what you'd pay at a local Walmart. To get this deal:
  1. View the Glade Sense & Spray 0.86-oz. Refill 2-Pack for $4.88
  2. clip the 75 cent off coupon on the product page
  3. order via Subscribe & Save to cut it to $3.90 and bag free shipping
Be sure to cancel Subscribe & Save after your order ships to avoid being billed for subsequent shipments.