You know i have never really kept track of how much washing i do but i would say i do a load a day and on the weekends maybe 2 or 3. But thats normal clothes - DH's work clothes get washed in a seperate machine with no other clothes. I was all DD's clothes on a gentle cycle and so through in my underwear at the same time and if the load isnt big enough then i just put more clothes and they get a gentle wash too.
towels and sheets get done once a week. Due to the lack of room in my place I only have one set of sheets and two towels for each of us so there are none extra laying around....and it makes sure i make the bed!