Five things to know about cash

Suddenly, cash is king again. With more and more Americans worried about their job security, the personal savings rate has climbed to 3.6%, up from next to nothing two years ago. Investors, meanwhile, have parked billions of dollars on the sidelines while they wait for better days. But with interest rates on savings near record lows, it pays to be savvy about where you stockpile your rainy-day funds. Here’s what you should keep in mind