Bringing back the Investment Tax Credit from the 1990s and eliminating capital gains would do wonders for the economy.  On the surface, it appears inflationary.  However, this form of stimulus does not come from the government printing excess money, and taxable forms of increasing wealth could be used to pay down the national debt. 

Yes, government receipts would go down initially, but not for long.  Our financial system would become immediately more healthy and remain that way, at least until taxes rise again.  

Sadly, neither of these things will happen, let alone both simultaneously.