I was able to purchase 3-2 oz sprays for $15.92 after stacked promos applied. Currently 20% off site wide if you spend more than $25 and free shipping if you go over $19.90 with order. If you add Vanilla mint to your cart and apply coupon code FREEMINT you will get it for free as long as you are purchasing another 2oz spray. Getting 3 seemed to be best offer to me. It seems discounts are applying even if it goes below $25 for 20% off and under $19.90 for free shipping.
Edit: There should be a link on their page to sign up for newsletter and get a 20% off promo code. With that you can get 2 for $7.96 + tax
Edit2: Received email today free shipping has been extended to all orders over $1 until 5/31