I think a lot of these ideas would help the economy a little, but that's all they would do. I believe it's still goes back to what broke the back of the economy to start with, which was housing and then the price of oil.
I don't know exactly how to fix them, but I believe the economy will stay flat until it happens. For example, see Japan's lost decade which I think is what's happening to us.
I think that we need some kind of incentives to buy houses, not just refinance those already in homes or investors. More than just first time home buyers also. Housing has a huge affect on jobs and tax income. Oil speculation has got out of control and needs to be addressed.
Of course, I realize that there are a lot of other issues that need to be taken care of such as the deficit, jobs going to other countries, etc...Plus no one wants to purchase a house until the feel secure in their job or even just the price. But until housing is fixed, the economy will be flat.