Number 1 in Service via Amazon offers the Poo-Pourri The North Bowl Preventative Bathroom Odor 2-oz. Spray Gift Set for $21.95. Coupon code "POO20OFF" cuts the price to $17.56. Plus, Prime members bag free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $5.25.) That's the lowest total price we could find by $5. The set includes two 2-oz. spray bottles that purportedly stop bathroom odors before they begin by creating a film over toilet water that will trap odors.