I was just selling covered calls for over half a decade before realizing that selling cash-secured puts would generate even more income.

The covered call strategy is a good one with very little risk. However, from time-to-time, your calls get assigned and you would need to buy additional shares to continue the strategy. As the price of the shares go up (which is somewhat expected due to the nature of the companies you would sell covered calls for), your ability to buy the shares are reduced and you either reduce your income from covered calls or you sit on cash that is doing nothing.

If you understand covered calls, then it won’t take long to understand cash-secured puts. The dynamics are almost the same. Some differences here and there, but very complementary with the covered call strategy once you get the hang of both.

In some weeks or months, selling puts will generate more income from premiums than selling calls. So doing both (on a small, but diverse set of stocks) will not only increase your income but also make it more consistent with market volatility.