Not buying flood insurance while living in a flood plain is an example I've seen in my city
Typically seems like $100-200 per year for coverage that would handle the loss of most of one's possessions, provided you don't get screwed by "well, you don't have the receipt" or "we only cover water ingress, not floods or leaks".
Hopefully, I never have to use it, and it is just a tax I pay.