Ron Wiener, founder and CEO of Earth Class Mail, has more skin in the game than most entrepreneurs.He's refinanced his house more than once and gone into seven-figure debt to help fund the company."It's not for everyone," says Wiener, who's financed previous companies with six-figure credit card debt and says of his current experience -- "it's just more zeros." "I have to laugh when I hear people say... they've gone three months without salary. We went two-and-a-half years."His persistence comes after he sold a a previous company for $50 million during the dotcom boom, but ended up in the red after paying taxes and after the stock tanked before he could sell due to a lock-up.After all that, Wiener is ... [ Read more ]