My plan: Abolish the IRS completely.
The federal government sends a bill to each state for a tax amount based on the latest census. The states then figure out how to collect it. Eventually, given 50 states, the best, least tax collection practices, and most likely not to crush the economy will emerge.
Interesting concept, wintertime. The concept is new to me, and I’ll have to go think on it a bit, but I certainly like the idea of abolishing the IRS. And, the states would certainly regain a large measure of control over their own destiny.
HST, the FairTax also cripples the Fed — that is one reason I like it so much.