It was the day before Thanksgiving ­ the first one my three children and I would be spending without their father, who had left several months before. Now the two older children were very sick with the flu, and the eldest had just been prescribed bed rest for a week. It was a cool, gray day outside, and a light rain was falling. I grew wearier as I scurried around, trying to care for each child: thermometers, juice, diapers. And I was fast running out of liquids for the children. But when I checked my purse, all I found was...