Financial advice geared toward single women is more important than ever before. Roughly one-quarter of all households are currently headed by a single woman, with family sizes ranging from no kids to more than it might seem financially feasible for one woman to raise on her own. Further complicating the situation is the fact that the majority of these female-led households have a smaller income and smaller savings than households of similar size led by men or couples. Although no one likes to think that there is such a clear difference between income levels based on sex, most single women do have a more difficult time making ends meet; they make roughly half of the national average for other households of their size. Whether they are experiencing discrimination in the workplace, struggling to raise a family, or dealing with the aftereffects of…