Some good advice in there even if I don't agree with all of it. The Show & Tell is a particularly good idea. I read one excellent example today here in Colorado.
Douglas County has instructed their police officers out on patrol to stop and do their paperwork while sitting in their squad cars out in front of local schools as a way to have better police presence to discourage lunatic gunmen. Great idea and no additional cost to the taxpayer. Didn't require any new laws, government spending or stomping on law abiding citizens 2nd Amendment rights.