We have two married 60-something friends who are artists in Santa Fe and own a very simple home with a rental house in the front. The house is tiny by all but New York City standards, and since their income is always in flux (some months several grand, many months nothing at all), they live very close to the bone. No credit card debts, no car payments, no mortgage. The only fixed expenses they have are their $1,000 a month health care policy and a few utility bills. Generally, they get along just fine, but last month, when he ended up in the hospit