All great ideas, but I have a few additional:
1.) ELIMINATE all payroll and self employment taxes and raise the top rates to offset the need for more revenue. This would encourage more risk taking and entreprenurship amongst poorer Americans and boost innovation. The SE tax is antiquated and highly regressive.
2.) I thought of this as companies are sitting on record amounts of cash on their balance sheets and not hiring, but instead buying back stock. I would propose similar to Florida's pre-2006 Intangible Personal Property tax a non-capital (Current) asset property tax for corporate non-capital assets over $2 million, BUT with an offsetting credit if an employer hires new workers or gives workers a raise. Basically- Free your cash or pay for hoarding or stock buybacks!
How about, instead of your second one, a tax on undistributed corporate profits.