This New York Times article, Solution, or Mess? A Milk Jug for a Green Earth highlights a redesign of the gallon milk jug.
Old milk jugs could not be stacked, and required crates to deliver. Crates had to be returned and washed to reuse. The shipping methods are labor-intensive and not very efficient.
New square shaped jug
- can be stacked and shipped on pallets
- cuts labor in half
- cuts water use by 60 - 70%
- fewer deliveries (more fit on a truck)
- keeps milk fresher
- costs less (10 - 20 cents a gallon)
I say get used to it, we will be seeing more products changing their packaging for more efficiency.