Cost of Shipping

Some stats on the cost of shipping to get the juices flowing. These are from the book "Let My People Go Surfing" by Yvon Chouinard, founder of Patagonia and a personal hero.
"From raw materials it costs 110,000 BTUs to make a Patgonia shirt. Shipping it airfreight from Ventura, CA to a store in Boston costs 50,000 BTUs."
And generically, cost to ship per ton:
Rail or boat: 400 BTUs per ton per mile
Truck: 3,300 BTUs per ton per mile
Air cargo: 21,760 BTUs per ton per mile

So, whenever you can, take advantage of cheaper shipping methods. You'll save some money and do something for the environment as well!