Go to the polls and vote.
You live in one of the few countries in the world where changing governments doesn't require you to go out into the streets with your rifle and kill people; with the flick of your wrist you can consign career politicians, liars, dimwits, panderers, and other tax thieves to the unemployment line. No idle threat in this time of 10-22% unemployment. So do it. Get some friends to go with you. Get them to bring their friends too. BE THE WAVE.