This is sort of at both Labyrinth and werepossum: The only alternative to our current variant of capitalism (in which I would argue that the transnational corporations are getting powerful enough to be effectively free of regulation and start lopping the fingers off the invisible hand of the marketplace) that I've seen is a combination of sustainability and self-sufficiency that is, I think, descended from the hippie "back to the land" movement, but better because the people doing it now aren't all dumb and stoned.
Sometimes it's simple--someone decides that they can't afford organic food, so they learn to garden, start ripping up their front yards and planting vegetables. Since this is a big gardening town, it's not too difficult to find someone who will help you figure out why your lettuce keeps bolting or what is eating your tomatoes and what to do about it. They swap with neighbors that are growing whatever they aren't, trade seeds and plant starts. Really, what they remind me of is my Grandmother who, for most of her life, grew all her own produce. This is a trend that has been progressing in my city for at least 10 years and has really boomed now that food, and everything else, is getting so expensive.
On a larger scale, there's a farm inside the city limits, 7 acres of land bought out from under a real estate developer that was going to build 23 McMansions it. About 20 people, if you include the little kids, live on the farm--they all have paying jobs and all pay rent, because they have to make payments on the 1.5 million dollar mortgage and that's the easiest way to work the payment situation. But the goal is self-sufficiency.
Every year, they have a little more land under cultivation. (It was entirely consumed by blackberry brambles when they got it.) They didn't tear down the old farm buildings. Instead, they used them to demonstrate how it is possible to retrofit existing wood-frame buildings with strawbale and cob construction. In fact, one of the main functions of the farm is to serve as a proof-of-concept operation. "Sure, this green technology looks cool, but can you actually live with it?" "Well, lets try it out."
The point is, it is a vision of the future that looks to the past, but instead of doing every possible thing yourself, reusing everything and never buying anything new if you can help it because you are poor, you do all these things because to become dependant on corporations for everything is to live at risk of...well, the kind of thing that's happening now. And you do it because we are killing the biosphere with our greed and our garbage. And they aren't a pack of self-indulgent hippies, they are where the far-left green-freaks on my wing of the political spectrum wrap back around to meet werepossum and his family.
Another friend of mine works in a poverty-stricken neighborhood outside of San Francisco specifically on "food justice", getting healthful food to people in the inner-city where there simply are no grocery stores, only convenience stores and fast-food joints. They have a big community gardening education program that is getting some traction, especially in some of the immigrant neighborhoods. Again, we've got people who are using hard work and community to get what they couldn't buy otherwise. They run a food kitchen for the poor and homeless and do you know where they get most of their food? A more refined version of dumpster diving. Grocery stores and restaurants throw out utterly disgraceful amounts of perfectly edible food every day because of small bruises, dents, box crushes, and other minor dings. If my friend's organization can make use of that, then everybody wins. Reduced garbage bills on one side, reduced malnutrition on the other.
And the interesting thing about this is, anti-corporate capitalism as it is, as a revolution it operates on a basic capitalist principle: If you want people to stop doing something, stop paying them to do it.
The other thing is, one of the major factors that makes this possible is the internet. It's hard to become self-sufficient if you don't know how to do stuff and no one that you know does either. But with the internet, you can find out, or you can find someone who knows and can tell/show you.
The main thing that the past never figured on was the fact that their future would not, in the end, be mechanical, it would be informational.
The revolution, you are typing on it.