Share a nanny with another family, in general it's working really well. As we share for 3 days, of which 1 is in their home and 2 in ours, we now need to start asking them for a small supplement to reflect feeding their 3 kids (between 6 and 1) for 1 extra day a week (x 3 meals). There are also nappies and wipes (both our youngest and theirs are in nappies, and wear the same size), but I think that comes out more even anyway.
Any thoughts about what amount we should suggest?