What trivial knowledge might save your life one day?

live below your means

Unfortunately for most of us, it would be the Bystander effect! Not proud of it, but yeah I guess its what majority of us have.

Don't eat food if you think they are bad - not worth getting poisoned for the next week, or die, because you wanted to save the food that cost $2. If you're unsure, just don't eat it, throw it away. If you eat it and you can't work it'll cost you even more, and possibly its going to cost an ambulance which might kill another person that needed it more than you so by wanting to save a $2 you actually "killed" someone and put yourself in danger. If you live pasta overnight don't eat it. Learn about food safety. People die from food poisoning. Ironically during the pandemic, I've learned most people have no clue that bread lasts two days either.