Yes, this is a real holiday. No, there is no good evidence who started such a thing.
But, today IS a good day to review your car insurance policy. Most of us just pay it every 6 or 12 months and pray we never have to actually USE it. But things change. I’m not talking big obvious things like getting a different car or having a child turn 16. I’m talking about the little things. Maybe you signed up for roadside services through AAA but are still paying for that same service on your car insurance too. Maybe you need to adjust your coverage amount against liability. Maybe you have a fee on your bill you’ve never really understood but never took the time to pick up the phone and ask about. Today is that day!