Commandment No. 5: Tips Are for Waiters

Editor's note: Jim Cramer's new book, Real Money: Sane Investing in an Insane World, is available in selected bookstores now. As a special bonus to RealMoney readers, we will be running Cramer's "Ten Commandments of Trading." For more about the new book and to order it, click here. To learn his "Twenty-Five Rules of Investing," click here. To read Cramer's first commandment, click here. To read Cramer's second commandment, click here. To read Cramer's third commandment, click here. To read Cramer's fourth commandment, click here. Today, we present Cramer's fifth commandment.

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It's pithy and the interviewers love it, so whenever I'm asked about my new book, Jim Cramer's Real Money, the fifth of my Ten Commandments of Trading comes up: ...