It's a brave new world for investors, Jim Cramer told his Mad Money viewers Friday. Or is it? Cramer said President Trump has been pretty transparent about his plans for the country, so now that the inauguration is over, it all comes down to execution.

The main thrust of Trump's inauguration speech was "Buy American, hire American," which will be good news for the defense stocks, agriculture, energy and pipelines, Cramer said.

But investors need to keep an eye on housing and materials stocks. Those stocks will slow if an overheated economy sends interest rates too high. The "buy local" theme also flies in the face of the secular trend toward e-commerce and growth at Amazon.com (AMZN) , so investors should use caution there as well.

Presidential mandates should also be taken with a grain of salt, as Obama's love affair with solar energy did nothing to lift shares of First Solar (FSLR) during his administration. One of the hottest stocks of the past eight years ended up being Ulta Beauty (ULTA) , which rode the wave of the selfie.

What's important now is how quickly Trump can make good on his promise of lower taxes, deregulation and repatriation of funds, or the "tripod" as Cramer calls it, and how well the economy does in the interim.

That's why Cramer advised buying any of the "Trump stocks" into any market-induced weakness.

Timing: Netflix (NFLX) rolls out teaser for next season of "House of Cards" on inauguration day.

Next Week's Game Plan

Next week marks the heart of earnings season and Cramer was ready with his game plan.

For Monday, Cramer said he likes Halliburton (HAL) , along with rival Schlumberger (SLB) , which is an Action Alerts PLUS holding. McDonald's (MCD) also reports Monday and Cramer said the earnings should be fine.

On Tuesday, Cramer was bullish on 3M (MMM) , but urged caution with Kimberly-Clark (KMB) , Alcoa (AA) and Lockheed-Martin (LMT) .

For Wednesday, Cramer was bearish on Norfolk Southern (NSC) , Boeing (BA) and United Rentals (URI) , but advised buying Freeport-McMoRan (FCX) , along with Western Digital (WDC) and LAM Research (LRCX) .

Thursday, Caterpillar (CAT) , Bristol-Myers Squibb (BMY) and Starbucks (SBUX) will be reporting, as well as Alphabet (GOOGL) , another Action Alerts PLUS holding, and Microsoft (MSFT) . Of the group, Cramer was bullish on Alphabet and Microsoft.

And finally, on Friday, Chevron (CVX) and Honeywell (HON) will be in the earnings spotlight and Cramer was a fan of both companies.

Cramer: Trump's anti-China rhetoric puts the Qualcomm-NXPI deal at risk.

Dollar Strength and Corporate Earnings  

What's on Americans' minds this inauguration day? Cramer took questions from viewers to find out.

When asked about the impacts of a strong dollar on corporate earnings, Cramer said that both Procter & Gamble (PG) and IBM (IBM) delivered strong results in the face of a strong dollar, so he's not as worried as he used to be.

Responding to a question about Trump's attacks on individual companies, Cramer said not to worry, as Trump is a businessman at heart and doesn't want to wreck companies, only negotiate better deals.

Turning to individual stocks, Cramer said those interested in owning a gun maker can consider American Outdoor Brands (AOBC) , the new name of Smith & Wesson. He was also bullish on National Oilwell Varco (NOV) , but not on Bristol-Myers Squibb (BMY) .

Finally, when asked about buying index funds for retirement, Cramer said he likes contributing monthly, but if the market sees more than a 10% decline, he'd invest three or four months' worth all at once.

Cramer: Investor should really buy the stocks that Trump slams on Twitter -- it's a buying opportunity.

How Politics Makes a Difference

Politics isn't the only factor affecting the markets, but it's taking on a new importance, Cramer told viewers, as he divided the stock market into stocks that benefit, and those that don't, under the Trump presidency.

Cramer said the biggest winners under Trump are the banks and energy stocks. Trump is clearly pro-fossil-fuel and Cramer recommended Magellan Midstream Partners (MMP) , an Action Alerts PLUS position, along with Schlumberger (SLB) and even General Electric (GE) .

Among the banks, Cramer said he likes JPMorgan Chase (JPM) , Bank of America (BAC) and Wells Fargo (WFC) , but deregulation will benefit Goldman Sachs (GS) the most.

Trump also benefits a multitude of other industries, like payroll processing (think ADP (ADP) and Paychex (PAYX) ) and uniform supplier Cintas (CTAS) . Also benefitting are those companies with cash overseas such as Apple (AAPL) , another Action Alerts PLUS core position.

Among the non-Trump stocks, Cramer said, pharma and indeed all of health care may be in jeopardy, with only UnitedHealth Group (UNH) being a winner. He was also bearish on the companies that make things overseas, and all of retail, which may be hurt by a cross-border tax.

Lightning Round

In the Lightning Round, Cramer was bullish on Activision Blizzard (ATVI) and Take-Two Interactive (TTWO) .

Cramer was bearish on Array BioPharma (ARRY) .

Read what Cramer had to say about all the stocks in the Lightning Round.

No-Huddle Offense 

In his "No-Huddle Offense" segment, Cramer said the only thing better than a blowout quarter is a blowout quarter with a roadmap for delivering even more blowouts.

That scenario may be rare, but it's exactly what Skyworks Solutions (SWKS) did today, propelling shares up 13% in one day.

In addition to being a very aggressive supplier to Apple, Skyworks today laid out plans for growth outside of Apple -- mainly the coming upgrade cycle to 5G networks, which will deliver higher speeds and better coverage to all devices.

Everything will need a Skyworks chip, Cramer said, and that's why this stock is heading significantly higher.

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At the time of publication, Cramer's Action Alerts PLUS had positions in SLB, SBUX, GOOGL, MMP,GE, WFC and AAPL.

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