The rules of the money game are important to doing well with your money over time. There is a comforting delusion when people think about money where it is so common to think other people's bad circumstances that you witness could not have also happened to you or might happen to you in the future. To people who are in good financial shape, these things tend to be viewed as things that happen to other people. But they can happen to you and given enough time, at least one of them almost certainly will. The definition of a recession is when your neighbor loses their job and a depression is when you lose yours.
There are only a handful of financial rules, ideas, and observations that really move the needle -- and explain the majority of what you need to know to do better with your money.
I could have narrowed this down to 10, but I had fun with this thought experiment, so here are my top 30 rules of the money game.