its honestly not a great deal of washing. I work too, and I do 2 extra loads. All I do is pop in the laundry bag with the nappies in the machinre overnight and hang them out in the morning. All done
EDIT: Just re-read my post and I come over a bit Mary Poppins. What I was trying to say is that the washing is really not that much extra. There is no handwashing, soaking, sorting darks from whites etc so it really is easy.