I agree with crosseyedcat!
I now have one at school and one at nursery. My nanny does drop offs, picks, afterschool activities etc. When my children are at school, she will either stay with us in a housekeeper/nanny role or we will get someone else to fulfil that role. I do the drop off at school (but not nursery) 2/3 mornings a week and one pick up, and dh does 1/2 drop offs as well.
I simply couldn't be with my dh if he didn't do what I perceive to be his fair share. First 4.5 years as parents, this, to me, meant 50/50, however, it became clear about 6 months ago that this was causing him no end of stress, because he works in a deal environment and so my insistence that he came home to do bedtime with me (our two nightmare to settle) was stressing him out. We compromised.
As i said earlier, I found school overwhelming when dc1 started school in September but it's gone much better this term. The difference has been three things. First, I have got more help at home. I have upped my cleaners hours etc, although, I am looking for a housekeeper because I still find myself doing way too much at home. Second, syncing of diaries. We have a "home" calendar and it now has all of the kids activities (they do a lot!) as well as our social activities on there. On my ipad, I can now see everything to do with home and work. That makes a huge difference to me feeling in control. Finally, I have been saying for the last year....if only I had a PA at home. Now I do. It's been about 5 weeks, but omg, she's a total godsend! Between her and my work PA, I don't have to think about admin at all. Just really simple things, like helping organise my dd's birthday party, researching presents for people, arranging for decorators to come and give quotes, booking theatre tickets and dinner reservations, researching and booking our family holidays for this year. All the things that I want to do but which suck up my time. She's been worth every single penny.
By the way, has anyone looked at Citymothers - they are a networking forum which people might find useful - www.citymothers.co.uk - it's been a long thread and couldn't remember whether I had mentioed them before!