Sell before the holidays. Stock prices tend to rise on the last trading day before major holidays.

When a corporation goes into the marketplace to buy back its own stock, it means management thinks the stock is undervalued. This is a smart time to buy.

Sell before the holidays. Stock prices tend to rise on the last trading day before major holidays.

Invest less at the end of the month. Brokers tend to push stocks at the end of the month in an effort to match or surpass their previous month's sales.

Give a cold shoulder to cold callers. Never invest in anything based on a phone call from someone you don't know or whose office is a post office box.

Always leave a sinking ship. There's no virtue in hanging on to losers. And stocks don't have feelings.

Bulls make money and bears make money, but pigs seldom do. When a stock or mutual fund is up 30%, sell one-quarter of your position.