I have been lucky with all my kids. They generally go back to sleep when they have been moved. Even now Ash is 3, and if he falls to sleep at school run I can pick him up, buckle him into his car seat and he goes back to sleep. He then sleeps on my shoulder walking across the school oval.

So no real advice for you sorry. I just used to pick them up and put them in pram/car and do what I have to do.