Psychics and hairdressers have three things in common. They can appoint themselves, they can work out of their homes and they don't have a lot of overhead: a Tarot deck, shampoo, candles, scissors, incense, mousse. It helps if they have a reassuring manner, because many of their clients want to tell their troubles and receive advice. Poor neighborhoods have a lot of women working as beauticians or soothsayers. If you're a woman with few options, no husband and a bunch of kids, you can hang out the shingle and support yourself. The advice dispensed by these professionals is often as good or be...