Shark Tank star Kevin O'Leary and some of his super-rich business partners are the proud new owners of the most expensive sports card in the world. "Mr. Wonderful" revealed the news Monday, August 25 ...

Scared off by the annual fee on premium credit cards? Here's how easy it is to get value from them -- using one of my favorite cards as an example.

"Mr. Wonderful" revealed the news Monday, August 25 during an appearance on CNBC that he, Matt Allen and Paul Warshaw pooled their cash to spend an incredible $12.932 million on the card. The card is ...