Permanent Portfolio (PP) is the best investment strategy for anyone. It has low volatility and decent returns that can protect you against all economic situations. It does not require lots of effort to keep up with the market as you only need to review your portfolio once a year.
If you do not know about this beautiful strategy, you got to read The Permanent Portfolio. To get you going, I have summarised the book in the following points but nothing beats the detailed explanation about PP and the options available to build your own portfolio. You can also read my interview with Craig done in June this year.
PP consists of 25% allocation in each asset class: stocks, bonds, cash and gold. It may be simple, but the authors explained,
...Even though it appears simple, it is far from simplistic. The allocation actually reflects a sophisticated understanding of economics and ...