Same here, and put the states back in place, as a barrier between individuals and the federal government as the founders intended.
The states already have the mechanisms and agencies in place to collect state sales taxes at the cash register. Move to a national sales tax, and the states can collect it the same way, then forward the federals' portion to the Treasury Dept.
We wouldn't need the 16th Amendment or the IRS if it were set up that way. It would sever the vacuum hose of government into our pockets.