we were advised in nct classes to have 2 plans - 1 normal, 1 c-section (then you can whip the right one out when needed), and they were really after-birth plans - breastfeeding yay or nay, skin to skin, vitamin k, how you want 3rd stage managed, what you want if baby needs to be taken elsewhere (i.e. does dad stay with you or baby)
written in short, bullet pointed sentences, no more than 1 side of a4 (mine were much less).
my community midwife mocked mine, said it was unrealistic to breastfeed shortly after giving birth. hospital mw was great, read it, said 'shall i just strike these things out?' about irrelevant stuff (I had wanted a water birth, but bleeding prevented it, then needed induction after 2 days labour=2cm dilated )
I ended up saying to her my new plan was 'get baby out, keep carnage to a minimum, don't tell me if i poo' which i'd read on here somewhere they managed the 1st and 3rd of those aims anyway...