And nannies come to your house so the kid(s) gets to sleep in his own bed, be around his own stuff, etc. And ours also did a fair amount of cleaning and would also cook meals for our kid, though not for us, disappointingly.
On one hand, we were lucky that our two kids were spaced far apart (3 1/2 years) that Rosa Maria never had to double up and could give each kid her devoted love and attention. We were, however, unlucky in that it stretched out the nannydom for about an extra year. When I think about it, I'm realizing we actually had her for just over 4 years.
But like I said before, very glad to have that chapter closed though we really do miss Rosa Maria.