The New York Times has created an online "game" that allows you to tackle the U.S. budget deficit by creating a plan of your own. When you are done implementing the plan, you can see how it actually will affect the deficit - if at all. I haven't tried it personally, but Gawker mucked around with it by moving tax levels back to the Clinton era and getting out of Iraq and Afghanistan. They claim that did the trick. Here is the lead-in from the NYT:
"Today, you’re in charge of the nation’s finances. Some of your options have more short-term savings and some have more long-term savings. When you have closed the budget gaps for both 2015 and 2030, you are done. Make your own plan, then share it online."