We are gearing up for the cold up here in the midwest and I have no idea what kind of outerwear to get for our little girl. She's almost 6 months now and so far we've gotten by with a Columbia fleece jacket. But now that the temperatures are dropping, I'm not sure whether to go the snow suit route or just get a down coat. We just got a Bundleme for her car seat/stroller, so I'm not sure if a full body suit is necessary. Advice/opinions?