If you haven't tried The New York Times's Budget Puzzle yet, give it a shot. Balancing the budget is easy when you don't have to deal with Congress.
Here's my solution. Fifty-seven percent of my savings came from tax increases (I returned the estate tax to Clinton-era levels and instituted a carbon tax, among other things) and 43 percent came from spending cuts (I cut military spending everywhere I could).
Balancing the budget is easy when you don't have to worry about Congress or constituents.