M.B.
Hi A.!
I too have a 4 year old daughter and a new baby! I had the same dilema you do. I didnt do the double stroller because I think they are too big, plus my daughter wont do a stroller anymore. SO I got a baby carrier, its a snugli, its basically a knock off baby bjorn. When I go for walks with both of them, yes I have to go slower because of my daughter, but I do have a 20 lb baby strapped to me too. Its hard to get adequate exercise when you have two children with you, at least I think so. I still want may daughter to have exercise with walks, I just wanted to get more out of it myself, so I use the baby carrier. I also have a tredmill I do when they are sleeping. Congrats on baby! My daughter took a little bit to adjust, but she LOVES her baby brother and he loves her. Its amazing to see them together, another love I didnt know about!!! =)