For income earners who are saving for retirement, a so-called Mega Roth may be used after maxing out the standard 401K contribution. Learn how a Mega Roth can be used to save after-tax dollars for tax-free withdrawals in retirement.

Margin lending is a flexible line of credit that allows investors to borrow against the securities they already hold. When used responsibly, margin can serve as a source of liquidity for short-term financial needs.