I find it lonely as its only 1 DC & I.
At least yours will play together?
My DD just shouts at me the whole time, telling me what she's doing!
When I see couples everywhere, I wonder if the women are secretly on the Mumsnet Relationship boards as their DHs are intolerable. Its gets me through days out alone 
I know most families are genuinely happy, but some are not.
Plus when I get home, I just have myself and DD to think about.
Im working mostly through the summer, & DD will go to a Forest School.
Tax credits will pay 70% towards Childcare costs., which I am extremely grateful for.
We have loads of Nurseries around here that offer care through the holidays, from 08.00-18.00 & we are rural.
Could you put 2 in holiday club on some days?
I tell Tax Credits the week before online, it takes seconds to sort.
Good luck.