Flat tax. No deductions, no exceptions. No 'progressive rate. Everyone pays the same 'PERCENTAGE' of their income. No tax on income gained from the investment of money that had already been taxed. No inheritance tax, no death tax.
And all elected officials (Fed. State. local) shall be taxed an additional 5% over the standing rate. That will be motivation to keep the rate where it is, or maybe even lower it.