Did you miss "Mad Money" on CNBC? If so, here are some of Jim Cramer's top takeaways.

Is anyone able to challenge Amazon? Cramer said it's doubtful, but there is one company that's got the scale and the will to make it a two-horse race, and that's Walmart (WMT) .

Younger investors might forget that before Amazon, Walmart was the undisputed king of retail and devoured anyone that got in its way. Walmart has the scale to offer a larger variety than anyone and to negotiate with suppliers to ensure the best prices.

Walmart embarked on a new digital strategy in January 2015, making big-time investments into e-commerce, including $900 million in 2015 alone. The company then purchased Jet.com in 2016 for $3.3 billion to further bolster its online offerings.

Walmart now offers over 50 million items online, up from just 10 million items just a year ago, and it has online sales up 63% in just the past quarter alone. Walmart also has something Amazon doesn't have: local stores with perishable grocery items.

So can Walmart really beat Amazon? Cramer said probably not, but then again, the company doesn't need to beat Amazon. Simply making it a two-horse race would be a victory in and of itself.

Meanwhile, over on Real Money, David Yoe Williams says to enjoy the gold rally; it's just getting started. Get more on his insights with a free trial subscription to Real Money.

On a call with his AAP investment club members, Cramer says that a Trump administration proposal to ban laptop computers on airline flights to the United States could be "the single greatest thing that could happen" to Apple (AAPL) . Read more and get a free trial subscription to Action Alerts PLUS.

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At the time of publication, Cramer's Action Alerts PLUS had a position in AAPL.

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