We didn't have nearly enough nappies when my son was born so I was washing every day. Once we had a bigger stash I think I still washed every day for a while as they go through so many when they are little, I could just relax more about getting them dry and not chase the sun & heater all day (no dryer).

I now wash pretty much every second day, so the theory is I wash clothes on the alternate day but sometimes I do 2-3 loads in a day and other days I don't wash at all.

I still haven't decided what to do about two in cloth. I already have the biggest sized nappy bucket and I don't want to deal with two buckets so I think I'll just use the one and go back to washing every day.