Don't forget to chill out.
20. Hold your investing rudder steady. While a volatile stock market can scare people from investing, Olen warns that selling after a big drop can mean locking in big losses. "The overall financial picture has been cloudy for close to five years, and it's likely to remain cloudy for a decent while longer," she says. But panicking only leads people to buy and sell at the wrong times, she adds. In other words, slow and steady is the way to go—and avoid knee-jerk reactions based on the latest financial news.
Do you plan to make any big money moves this summer?