Just curious - we have a nanny who does a 42 hour week for us. 3 kids - one 8 year old at school full-time, one at nursery part time, one 20 month old.
I work, but in my studio at home, so I try to do what I can to make her job a bit easier, eg one of us will do the school run while the other looks after the younger two. I'll stay with my 3 year old daughter while she walks my youngest boy to sleep. Every week there are activities that I take one child to - one of my reasons for having a nanny was also so I get to spend one-on-one time with each of my kids. So it's not like she is full -on with all three all the time, if you see what I mean.
Anyway, she will always tidy the toys at the end of the day, keep kitchen surfaces clean and unload the dishwasher if needed. I sometimes ask her to do put away children's clean laundry, which she will do - but only if I am with the kids (while they have tea or whatever). She does cook their meals, but it's not much cooking, if you see what I mean! Dishes etc might be made in advance by me, or we're talking about putting a quiche or fish fingers in the oven - I don't expect her to whip up stuff from scratch!
I'm just increasingly feeling like she should try to help out on the housework front a bit more, ie empty a bin if it's needed, or quickly run the Hoover over the kitchen floor from time to time. What would other people be expecting in this situation? I'm not expecting her to be a housekeeper, but I see friends nannies doing a lot more in this department...