Pay out more interest to their more common customers instead of to multinational investment firms?

Don't nickel and dime your customers into the negative?

Don't get govt bail outs and subsidies for every bad business decision? Maybe make them pay for their mistakes?

Re-codify anti-trust laws?

Outlaw predatory practices?

Actually enforce ANY of the laws we currently have in place with punishments that actually mean something?

Anything, dude. Anything at all.