I went back 3days with my singleton and then upped it to 4 days which I will continue with my twins. Love that I still get a day with them but also earn a proper amount of money & have enough in work days to achieve something (this is not to criticise anyone else's number of working days, it's my choice for my career). Also childminder over nursery for many reasons including cost.
I went back to work 4 days a week with my eldest and carried it on with my twins. They go to a childminder as it was cheaper than a nursery. Hope that helps x