At the state level, pass legislation requiring any governmental office or private business open to the public which prohibits concealed carry on the premises to provide secure storage lockers at each entrance for members of the public to secure their weapons in while on the premises. Then pass legislation providing that any such governmental agency or business which prohibits concealed carry to be strictly liable for any injury to any visitor to the premises which could conceivably have been prevented or mitigated by a concealed weapon, whether or not the visitor had a concealed weapons permit.
Pass these laws and sit back and watch the "no handguns" signs disappear all over the state! 
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Violence is an ugly thing, but not the ugliest of things. The decayed and degraded state of moral and valorous feeling which believes that nothing is worth violence is much worse. Those who have nothing for which they are willing to fight; nothing they care about more than their own craven apathy; are miserable creatures who have no chance of being free, unless made and kept so by the valor of those better than themselves. Gary L. Griffiths (Paraphrasing John Stuart Mill)
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