As we walk away from the G-20 it appears that various nations have been given homework so as to improve the global economic crisis:
The United States are being asked to increase its savings rate, reduce trade deficit and work towards improving its huge budget deficit.
China, Japan and Europe (Germany in particular) are expected to reduce their dependence on exports. They are being asked to promote more internal consumer spending and investment as opposed to relying on the rest of the world for financial support.
Of course all changes will take time but I think that if it can be done these would be relatively efficient ways to improve financial standings.