When compared to plastic jugs, plastic milk bags use about 20-30% less plastic. Additionally, pillow pouches are thin and flexible, requiring about 20-30% less energy to produce and transport.

In the discussion, one savvy shopper noted that one gallon goes for $3.89 and a two-pack of one gallons is $7.78. If you do the math, you'll notice the two-pack is simply double the price of the ...