I suggest searching for your store by zip to make sure they carry this product, so you don’t waste a trip.
Buy 2 OFF! Heat Activated Repellent Pad Powerpad Lamp $8.22
Use Buy One, Get One Free – OFF! Powerpad Lamp – (off.com)
And use $2.00/1 – OFF!® PowerPad® Lamp or Lantern Starter – (rightathome.com)
Final Price: $3.11 each, when you buy 2 (62% savings)
You should be allowed to use on manufacturer coupon per item, but your mileage will vary at any store, especially Walmart. Learn more about how to maximize your savings with BOGO coupons.