These ETFs can be great complementary pieces in a portfolio.One of the bigger investing myths is that it's complicated and time-consuming. This couldn't be further from the truth, especially when you're investing in exchange-traded funds (ETFs). ETFs allow you to invest in multiple companies at once, often providing instant diversification and checking off many other boxes.Investing in ETFs can be especially helpful during times when there's more uncertainty than usual in the stock market, or when top-name ...