FWIW- the doctor told us to avoid those winter type coats while J was in a carseat. The puffiness of the coat essentially ruins the safety factor of the carseat in the event of a crash.

They make these totally wonderful carseat liner/covers nowadays. The baby gets zippered in there. I forget what they are called, but, I think LL Bean makes them.

For walks, I went with the one piece cloth type things, and never did the 'snowsuit' type thing at all. J wasn't out in the cold long enough, and they just aren't bendable enough for me. J would look and act like he was a giant pepperidge farm gingerbread man cookie- KWIM?

Now, at 5, he does have ski pants with a bib.