The money manager in the family is probably spending more time in front of a calculator these days. Overseeing the family's financial portfolio can be a time-consuming activity. It can also be an engrossing and satisfying occupation that's as much an art as a skill. Economic woes and uncertainty about the future have turned money management into a big job -- especially for retirees. Learning to live with less, protect existing assets and discover new places to invest funds for safe growth may not be as much fun as fishing, or as exciting as a good game of golf, but it's a big concern for seniors in today's financial climate.