Amazon has a few different RX Bars 12ct boxes on sale for $15.53 or less after clipping 30% off coupon.
Shipping is free when checking out via S&S.
Also if you got in on the free RXBar Promo a week or so ago you may get another $2 off your purchase.
RXBAR Whole Food Protein Bar, Peanut Butter, 1.83 Ounce (Pack of 12) $15.53 or less
https://www.amazon.com/dp/B0143NQ…GAbZK
RXBAR Whole Food Protein Bar, Chocolate Sea Salt, 1.83 Ounce (Pack of 12) $15.53 or less
https://www.amazon.com/dp/B0143NQ…GAbEA
RXBAR Whole Food Protein Bar, Blueberry (Pack of 12) $15.09 or less
https://www.amazon.com/dp/B0143NQ…GAb3P