Amazon has the 18-Pack 1.6oz Larabar Fruit & Nut Bars (Blueberry Muffin, Lemon Bar & Apple Pie Variety Pack) for $19. Change quantity to 2 (36-pack total)  to reach  $38 - 5% off with Subscribe & Save (can cancel at any time) - $15 multibuy discount = $21 with free shipping on $35+ or with Prime.

Other flavors also qualify for the $15 off $35+ promo: Peanut Butter Chocolate Chip, Chocolate Chip Cookie Dough, Lemon Bar, and Cashew Cookie.