I find keeping a house full of adults is the best way of dealing with babies and toddlers. So if you have grandparents and parents sharing the night time feeds, nappy changes and releasing the little darlings from the cribs, everyone gets a modicum of sleep and can manage to work and eat.
I also find the baby swing from the store is a great way to encourage babies and toddlers to sleep and wake at a reasonable time. A premium item I believe it still comes up on daily deals. Well worth the investment. Rumour also has it there is a toddler bed. This is cc so I don't know anything more about it.