With orders of $25 or more, Amazon offers Prime members the Blue Diamond Almond Breeze Almond Milk 8-oz. 4-Pack in Chocolate for $1.87 with free shipping. That's tied with our mention from five days ago (although it didn't require a $25 order) and the lowest total price we could find by $6. It's lactose-, soy-, and gluten-free, and has 50% more calcium than dairy milk.
Note: This item is offered as part of Amazon's "add-on program" and can only be purchased with an order of $25 or more. It's expected to ship in 1 to 2 months.