If you invest in individual stocks, which I wouldn't recommend for most people, please limit the amount to a very small percentage of your investment portfolio. (kevinoninvesting.com)
For instance, if the stock market has been performing well, eventually you'll end up with a higher percentage of your investment dollars in stocks than you initially intended. (us.etrade.com)
Physical properties would become a larger percentage of your investments then, right? (financialsamurai.com)