With stocks at record highs, many investors are getting nervous about a potential stock market crash. But selling off your investments isn't the answer. Fortunately, there are better alternatives to crash-proof your portfolio.

In the following video, Fool contributor and financial planner Dan Caplinger shares his views on how to best prepare for a future downturn. Although the temptation to dump your entire portfolio is strong, countless investors have been stuck on the sidelines for years during the current bull market after having followed the same strategy during the 2008 market meltdown. Instead, Dan suggests a more measured approach that he describes in detail in the video, with an emphasis toward finding balance while remaining consistent with your overall investing strategy.