I don't recall if you are keeping baby flighted but with us, our biggest hurdle to overcome was getting ourselves conditioned to going in and out of the doors. If I had to do it over again, I'd put a stuffed animal on my shoulder and condition myself not to go out the door with it on my shoulder. It took us MONTHS to stop making door mistakes. Other than that it took about 2 years to finally come up with a system that works around here to keep our sanity and keep them happy.