I have experience with this, i take my kids to the bus every day. Last year it was just my son so on the really cold days he would get driven by a friend who had to drive her own son and i wouldn't have to go out at all. This year it's both kids and i don't think she will be able to help me out. Depending on how far you have to go or how deep the snow is, a stroller with a plastic cover might work, even with just a little bit of snow. I know people who use toboggans for the little kids and the older kids walk. I know they take forever (sorry lol) but it's easiest for you. I would be hesitant to put the little one in a carrier, because if you slipped and fell, you and the babe would be hurt. (this is personal experience- i fell with my son in the carrier when he was facing forward when he was 9 months old. I landed on all fours but he hit his head- got a minor Hairline skull fracture but he was ok, healed in a month).