Haha in the original draft of this post I had "make more money/work on yourself" as one of the points but took it out - most people seem to know the big stuff like don't make big purchases you can't afford. What seems to be less common knowledge amongst my friends at least is how much little things like eating out often has a financial impact on them since it's harder to see. We aren't programmed to understand compounding very well so I wanted to highlight that in the post somehow. This could just be my very young self talking since I haven't seen very many different financial profiles out there.