Heard Clark Howard on the radio Friday.He mentioned he retired at age 31. He said he invested in stocks,had a travel agency he eventually sold and saved I believe 50% of his income. Does anyone have any info on exactly how he invested in the market to be able to retire in roughly 10-12 years. I don't think he's written an autobiograhy as yet. He's currently 52 and has obviously reaped tremendous portfolio growth from the 90's stock market boom, after retirement!