While it’s important to have cash on hand in retirement, low-risk, low-yield investments can give your emergency fund something to do until you need it. Editor’s note: This is part three of a five-part series on supplemental income streams in retirement. Part one, Could Supplemental Income Strategies Work for Your Retirement?, is an introduction to the series. Part two: A Managed Account Offers Optimization and Tax Efficiency. Part three: Annuities Provide Peace of Mind and Lifetime Income. Part