@Curt On the vitamin D thing, I remember when my pediatricians said it was no concern for children. Several years ago, when doctors first started looking at vitamin D levels in adults and started recommending supplements, I asked my pediatrician about it for children. He said there was no concern for them, but two years later, the concern extended to children. Many kids don't drink much milk today and so miss out on the vitamin D added to it. I try to buy orange juice fortified with calcium and vitamin D and do offer my kids the supplements. Not all are willing to take, though, not because they can't but because they don't like tablets. As for actual sun exposure, the pediatricians recommend 15 minutes a day, but there's no way they're getting that here in the winter.