Organize some action at the binnenhof, to ask politicians to make our world a better place. You decide the exact subjects. An idea from Bart

For example: against bio-industry, for lower carbon offset, better health, social services, education or by measuring prosperity by happiness instead of measuring it by average income.

Nice one, I especially like measuring prosperity by happiness instead of measuring it by average income. This would be a great change in how we look at ourselves and how we are doing...