Amazon has the 4-Pack 12-Count (48-Count Total) Nuun Hydration Vitamins Electrolyte Tablets (Two Mixed + Two Caffeinated Flavors) for $26 - 35% off (check “Save an extra” box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel at any time) = $15 with free shipping on $35+ or with Prime.