Are you planning on going to the snow? If you plan on spending time in the cold air and snow make sure you have your boy warm and ready for all the snow ball fights and snowman building you guys are going to do. Many parents think that a jacket is enough to keep their boys warm and it isn't. The worst thing you want to do is not have your child ready for the snow.
I recommend using a Disney Pixar Cars Toddler Boys' Snow Suit when going to the snow. You want to make sure that your son is well insulated when he is playing in the snow. I have had my child get sick after playing in the snow and ended up paying a lot of money while I was out in the mountains for a snow suit. Make sure you you have the proper suit before you end up spending tons of money getting one.