1. Max out 401k every year
2. Work for a publicly traded company that offers stocks at a discount, invest 10% if you believe the company will prosper, reinvest dividends
2a. Work for a company that has an income deferral program, defer another 10% of your salary into mutual funds or other accounts they offer
3. Flip a few houses with cash money
4. Never borrow money from a bank or pay interest
5. Study land use plans, learn permitting and land development
6. Buy land in strategic locations based near good school/college locations
7. Develop your land with cash (and/or partner with other developers) and sell pads/lots to builders who focus on housing or retail
8. Buy new land, develop more lots/pads and turn your money at least twice a year
Repeat steps 6 through 8
I made a small fortune flipping houses in college towns and renting to rich kid's parents. It's a lot of work with very little risk. Worst case they cause a few thousand dollars in damage but you require 2 months up front and a downpayment, have a good lawyer write your lease contracts. Rich people pay silly money so their kids stay in houses on campus instead of dorms/apartments.
I've worked in land development for 25+ years, seen a lot of average joes get rich. Just have to watch your exposure to risk and know the right people. Go to development events and learn who the big dogs are, become their friend.
You're welcome.