The 10 Steps of the Bogleheads® Investment Philosophy are: 1. Develop a plan including living below your means, budgeting, saving, and avoiding excess debt. Put the plan in writing through an Investment Policy Statement. 2. Invest early and often to take advantage of compound growth over time. 3. Find the right asset allocation that balances risk and returns for your risk tolerance. 4. Diversify across different asset classes to reduce risk. 5. Never try to time the market which most investors do poorly at. 6. Use low-cost index funds to participate in market growth while avoiding common investor mistakes. 7. Keep costs low to maximize returns. 8.