It's a city in crisis – but with potential for a big comeback. Despite an ailing auto industry and the highest jobless rate in the nation, Detroiters are determined to make their hometown thrive once again. For the next year, CNNMoney will focus on that challenge.
They may have million dollar-plus nest eggs, but they had to make some big sacrifices along the way to get there. Here's what these four savers did without in order to save seven-figures retirement. More