Amazon has GoodnessKNOWS 12ct boxes for $9.75 or less after clipping 20% off coupon and checking out via S&S.
There is also one 18ct box for $16.26 or less after clipping the coupon.
goodnessKNOWS Peach, Cherry, Almond & Dark Chocolate $9.41 or less
goodnessKNOWS Strawberry, Peanut & Dark Chocolate $9.75 or less
goodnessKNOWS Mixed Berries, Almond & Dark Chocolate 18-Count Box $16.26 or less