Unless you have first paid off all your credit card debt, and then saved enough cash to weather a job-loss (6-12 mo., I prefer 12) then work toward paying cash for any depreciating assets (like a car).
For the cash reserved for job-loss… it does not need to be your full salary since during that time you won’t be paying taxes, etc. I like having a CD ladder for that purpose (just google CD ladder if you don’t know what it is)
After that, this stuff is good advice. Especially the tip on reading, The Intelligent Investor.
Some of us don’t think we can predict the future as well as others. This fact becomes the cornerstone of our investment strategy… the future cannot be predicted, thus we need a method of investment that does not depend on our ability to read the tea-leaves.