I wear contacts all the time, only wear glasses when I'm getting ready for bed. I would definitely recommend going to contacts, you don't even notice they're in and might make life a little easier with the kids.

I wear protective glasses for riding at all times, including night time riding. I have a sunglass collection to give variety, but really only one pair with different lenses would be needed. I got a pair of Tofosi for reasonable and they include clear, dark, and slightly tinted lenses. They work well, although I do have an issue with fogging occasionally.

Just out of curiousity, do you have perscription sunglasses that are an athletic style? I know my normal glasses do not have a sporty fit and would be terrible for riding. They're looser on my head and don't give that much coverage. Athletic oriented sunglesses are extremely comfortable, tighter fitting so they don't move around at all, and give great coverage!