With the Postal Service faced with huge deficits and service cuts, is it time to jettison old Prohibition era laws and let the Post Office compete evenly with Fed Ex and UPS? Those Post Office flat rate boxes would simplify wine shipping, 2 bottles, this price, 6 bottles, that price, no more weight and distance prices. At the moment, having wine shipped direct only makes sense with expensive wines, the cost of shipping can add 25% or more to the total cost of the wine. The Post Office flat rate boxes can allow inexpensive wine to become economically feasible to ship (or let you add an extra bottle or two of the expensive stuff to your order).
For more on the subject check out this article from TIME Moneyland