Is is really necessary to jump all over the OP? I agree the way the question is worded it could rub people the wrong way but calling this nanny names just makes you, especially fellow nannies, just sound snarky.

Good working with this family for two years, is this your first job? Are feeling in overload? It is not allot for your employers to ask you to clean-up especially after yourself and the kids. Work with the older child and give her/him some tasks their age can do. Go through your day on paper and write down everything that you need to accomplish in a day and come up with a game plan.

FYI, nannies do deserve a break in a day so OP work that in