KJ mentioned online food shopping and home delivery elsewhere so I thought we should dust off the old petro-polymer balls, gaze into the future, and talk about shopping in general.
"Consumption is 70% of the US economy" is the bumper sticker. That includes all the variable costs that go into making the stuff we consume, some of that is spending here, some elsewhere.
But we aren't talking about just iPhones, unleaded and hamburgers. Half of GDP ($8T of $16T) is services. Everything from healthcare to real estate commissions to credit card interest to coffee jerks.
When I was a kid we paid our "light bill" at the drugstore or at the bank. Online bill pay is increasing, 80% of American said they banked online at least once in the last year. Bad for the post office, good for energy use. The same online benefits apply to lots of other areas that impact travel - one of course is travel. Online travel booking is huge. But lots of other places: I do my taxes online, converse with my doc, receive payments from a couple of clients electronically - and I almost forgot, I make a living via the net - zero commute.
How about delivery? Anytime you have an opportunity to reduce cost you have the potential to increase profit. And, like just about everything else, scale is everything. UPS said that in 2010 they started mapping delivery routes to shorten distances traveled but also maximize right hand turns and minimize lefts to avoid idling. They say in the PR piece it saved them 63 million miles and reduced fuel consumption per package 3%. Not bad.
If you look to the past when travel was less convenient and more expensive and of course when the "little woman" was regularly home, traveling salesmen and home delivery was even more the norm. From the milkman to the iceman, Fuller Brush man and the kid delivering groceries on a bike. Not sure which way things might go, more computer-aided one-off delivery like UPS or maybe regular routes like the milkman.
Of course all that depends on having a job to pay for the stuff in the first place, LOL. I think personally that the best conservation measure will be pink slips but that's another thread. So anyway, the question here is how will shopping work in a future of higher travel costs?
http://useconomy.about.com/od/grossdome ... onents.htm
http://www.statisticbrain.com/online-mo ... tatistics/
https://www.sustainablebusiness.com/ind ... y/id/23015