I have been an active REIT investor (VNQ) for well over a decade, and I have made a lot of costly mistakes over the years. These mistakes have turned into valuable learning lessons and made me a ...

During the last 12 years on "Mad Money," here is the most important lesson Jim Cramer has learned: "Teach more and pick less." When Cramer started as the host of "Mad Money," he said the show was a ...