Sheets etc once a week.
Towels we go through a few with our feral famr kids so probably atleast 2 loads of towels a week.
I sort colors (all colors be it bright or light) go together and i would go through atleast 2-4 loads of colors a week
DP and i both wear a lot of darks so we would do about 2-3 loads of darks a week (including girls kinder pants etc)
DP's work clothes are about 2 loads a week (add in any totaly filthy mud clothes from the girls)
Whites are hard to make up a load at times so often end up in with the lightest of the colors if i have to.

I feel like i'm washing all day everyday and there are only 4 of us.