Outside regular business hours I won't work for less than $50, so 1 or 2 hours still costs $50. After first four hours of care, it becomes an additional $10 an hour. It needs to be worth my while. If it was for an extended period of time, or over night for example, then I'd agree on a flat rate at a lower amount.

I took a Friday off a few years back to be two siblings nanny at a wedding. I got paid for my lost earnings to begin with, so the day rate for all 5 kids, then she paid me an additional $10 an hour and provided my food. I drove her kids back from Toronto about 1 hour and they stayed overnight there. I bathed and fed them and they came home the following morning about 11. The Friday I was at their house for 11 am $240 + lost earnings $220. Some can afford it, some can't. My kids babysit for $10 an hour and don't do the driving around, cooking or bathing, so I think the parents got a pretty good deal.