While it may not save millions of taxpayer dollars, symbolism is important. The President should consider installing a geothermal system to heat and cool the White House. It will be a great way to highlight a natural and cost effective way to heat and cool the homes of Americans and highlight the remaining years of the 30% tax credit for energy efficient home updates. For every one dollar spent in a geothermal system, the consumer gets four to five dollars back in energy savings. Billions in energy costs could be saved, along with relieving the pressure on our aging electrical grid. That is what I would do to save money.