In a NY/NJ type climate....do you think I can get away with just using blankets over my kids in their bucket carseats? Or do I need to purchase one of those car seat covers like:
http://pec967myjn32xclv3mbkizhj.wpengine.netdna-cdn.com/wp-content/uploads/2014/05/JJcar.png

I'll buy two if they are necessary/useful. But if blankets work just as well..........I'm inclined to go that route.