We had 3 different friends on stand by. Our first choice was our nextdoor neighbour but we had back up of another friend in the village but we knew she might be busy and a friend in next village who would be around but doesn't drive so if we'd needed het we would have had to drop dd there on the way to the hospital. We also had nursery on standby to have dd from 8-6 any day of the week, even the days she's not normally in.
As it happened my contractions started at 4 am on a nursery day so DH took dd to nursery, came back and took me in to hospital at 10.
I do labour slowly because I seem to have babies who want to come out on their sides so DS wasn't born until half 7 that evening. Still 13 hours was better than the 36hrs with dd...
Meanwhile, neighbour had picked up dd, taken her home fed her, stuffed her in the bath with her own son (a couple of years older), shared stories with both kids then taken dd to our house and put her to bed.
DH got home at 10 which allowed neighbour to go home to bed.
We also left an instruction manual for dd setting out her routine, identifying favourite and critical teddies, food likes and dislikes and anything else that might help her settle given that she had never been put to bed by anyone other than us before.
She was absolutely fine, settled beautifully and treated it all like a big adventure.