YuriArcursPeopleimages/Envato Moneywise and Yahoo Finance LLC may earn commission or revenue through links in the content below. A comfortable home and a healthy nest egg are crucial for ensuring financial security in retirement. With $143,000 in cash, it's important to avoid letting it sit idle, as inflation and missed opportunities could erode its value. But what should you do with that money? As a retiree, you must be cautious with your investments. However, being too conservative could also hinder ...