So, after much deliberation and helpful tips from MN, we're going to try and find a part-time nanny.
My next Q is, is it considered bad form to post an advert ourselves AND (in addition) ask an agency to find someone? Or does this just lead to duplication of ads and annoyance for all concerned?
We'd rather advertise directly (am thinking nannyjobs and gumtree, and forward a link to people listed on childcare.co.uk) avoid agency fees if we can, and happy to take the time to check references, organise any necessary admin etc. Not persuaded yet that agencies can "add value" other than through their knowledge of local people who may be jobseeking.
In speaking to a agencies, they seem to want details and talk about (a) advertising and (b) speaking to nannies on their books.
So far they haven't given me any helpful guidance on the "going rates" in my area (Surrey, 50 mins from London), which am disappointed about.
It all still feels scary!