End all the wars we're currently in.
Adopt an isolationist view on foreign policy. We should only go to war if we've been attacked (or an ally), or we're under immediate severe danger. We need to start minding our own business-it's cheaper, and is better for us as well.
Reform (but not totally get rid of) Unemployment pay and welfare. Some people really need them-too many are abusing them. Crack down on the abusers with stiff penalties.
Raise taxes on the richest 5-10% temporarily-until we can get out of our debt. And before people jump all over me-this would raise my taxes.
Give tax breaks to companies for keeping jobs in the US, instead of outsourcing them (not really sure how to actually implement this in all honesty-just think it's a good idea).
End oil company subsidies.
End the war on marijuana-we spend way too much money on cracking down on something that's not as bad as tobacco or alcohol.
On a non-economic level:
Follow the constitution more closely. Specifically the bill of rights, and restore the rights that have been slowly taken away from us over the past couple decades.
End abortion.
Cut back on number of people on death row, by making stricter qualifications to get there. But still using it for those who've committed the most brutal crimes-and have DNA evidence against them.
Legalize gay marriage.
No national offshore drilling implementation-I think this should be a state issue, and should be voted on by the citizens of the state in question.
Just off the top of my head.