How can we all save the world?

How should we change the world, your country, your town, your house, for the long term benefit of all ? Have your say, and perhaps the moderators will offer comment and consideration of any truly good ideas posted, or a reason why not for ideas which we disagree with. Go on, I dare you, ask any sensible question on any topic, and return about a week later. Any takers? You there in the corner furthest from my soapbox? Oh - just scratching your head; I'm sorry. Well, I'll be back in a week and hope for more hecklers than at Hyde Park Corner.