Well we're definitely stopping at two. We've got a five year age gap which is great. Dd1 is really self sufficient and sleeps through the night, she doesn't even wake when B is screaming for food!
We only bathe B twice a week, wash her bum every nappy change as she developed nappy rash. Wash face and neck every day.
We've been following the baby whisperer EASY routine. We work in three hour intervals, she feeds first, then stays awake for an hour then sleeps for 1hr 30mins. And repeat! Start at 7am each day and she's ready to sleep for the night by 9pm. She then sleeps for 5hrs, wakes 2-3am for feed, then sleeps till 6-7am.
Works well for us, did it with Dd1 too. We're very flexible though and I feed on demand if she needs it. Just means we know where we are and she sleeps well at night.