TOTW: money, money, money

What kind of exchange do you anticipate working in an anarchist situation? Is barter or trade the only option consistent with your principles? Or do you see a committee-run economy with currency much as we have it now?
Do any anews readers believe in the power of crypto-currency to bring about a better situation, on the way to anarchy? Do local currencies have a place in your dreams? Do you have any experience with using one?
If you could make a change to how people exchange things here and now, what would that change be?
What is the best argument you’ve heard (or made) for why anarchists should work for economic (instead of, or along with, social/political) change? What’s the worst?

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Via:: https://anarchistnews.org/content/totw-money-money-money