Anyway, I think a good portion of what fucks the economy so often is fractional-reserve banking. No more banks that are "too big to fail" and no more bank runs if it gets removed.
NO NO NO NO NO! That is just ignorance. Fractional reserve banking is a very, very good thing. It allows us as society to make investments based off future expectations rather then current capitol distribution. Without fractional reserve banking, banks only lend at prohibitively high rates, it becomes very hard for people to open up small businesses (and I mean real small businesses, not "so what if I have 10 million dollars?" small businesses) and our society gradually becomes owned by multinational corporations who aren't inhibited by such a stupid policy because they have access to foreign credit markets.
What's more the bad things wall street did that got us into this mess were completely not the fault of fractional reserve banking. It was irresponsible gambling with other people's money pure and simple. That can and has happened in the past with or without fractional reserve banking.
If going back on the gold standard would be trying to drag our economy back putting us back in the 19th century, banning fractional reserve banking would be setting us back to the 16th. If this policy were actually enforceable, it would result in a huge, huge decline in our national output, something that makes the great depression look like a tea party. The only saving grace is that it would be completely unenforcable as people would instantly revert to using barter and IOUs to accomplish what fractional reserve banking accomplishes right now. So it would just be taking the economy from the semi-managed world of the dollar exchange and putting it into a chaotic system of a billion different means of barter and credit that would be enormously prone to speculation, chaos and scams. This is the sort of thing you would expect from a country going through a civil war or a national default, not as the deliberate result of the policies of a creditworthy economy.
It is good to be fed up with the greedy and destructive practices of the plutocratic class. But we need to be careful what ideas we embrace.