As pohnpei suggests, it's a very long list. Consider that our government at just the federal level has over 550 people, not including federal judges (of which there are thousands) and cabinet members, agency employees, etc. There are decisions on a daily basis.
Recently the government has also decided to pursue a surge strategy in Afghanistan, sending more troops there to try and break the back of a stubborn insurgency called the Taliban. At the same time, the government has decided to reduce the number of troops in Iraq to 50,000 by the end of August, a 2/3 reduction from its peak.
The health care reform package that passed both houses and was signed by the President was the first real reform in 45 years. The government also recently decided to require BP oil to hold $20 billion in a special fund to compensate economic victims of the oil spill in the Gulf of Mexico.