Yes, we know how to spend our money on food, shelter, and entertainment, but do we know how to spend our money on infra-structure, police and fire, military, regulatory agencies, foreign policy, and basic research?
"Know best how to spend our own money" has been a mantra of the anti-tax, anti-government crowd as if government is just a sinkhole giving money away for no purpose. They completely ignore that taxes pay for our roads, our sewers, and many other physical features of a civil society. They ignore that without regulatory agencies a power company could change its rates willy-nilly without warning. They ignore that without a military, there would be nobody to fight the wars that they claim we should get into. They ignore that without the basic research into atomic energy that we would not have the nuclear energy that taxes have heavily subsidized. And if they found this page with Google, they should thank the National Science Foundation, DARPA, and NASA for the grant to Stanford University in 1994 that made Google possible. See http://en.wikipedia.org/wiki/National_Science_Foundation and many other pages.