Learn CPR for infants and small kids. It's usually a different or additional class to standard adult and kid CPR that I think goes down to 2 year olds. You don't want that memory.

Always wait a second before going if you're in the front after light turns green. See too many fucking murderous psychos trying to save 20 seconds by roaring through fully red lights that they missed when it turned from yellow.

Add a water filter with pump to your survival kit. Costs like $20 bucks and means you could drink out of a damn stream in a disaster if mains burst, etc. given the state of poor emergency response and planning that has been on display in the US since Katrina and continues through COVID, NO ONE is planning or going to save you. Water is as important as it gets.

Insulated foil bags/blankets for your car. If you get suck and have to sleep overnight, if you run out of gas they might mean the difference between keeping toes, legs, fingers or your life. They're like $5 and smaller than a deck of cards and weigh almost nighting.

Always have a hatchet in your trunk. It's a hammer, a cutting tool, weapon, and 500 other things I learned reading The Hatchet as a kid.

Know how to find north, and read a map.

Go for your free annual checkups, especially if you're healthy--keep yourself that way!