Hmm, I never have tried to figure that out, but I do my laundry every 2nd weekend (for 2 adults). Three shared loads for 3 separate colours (whites, lights and darks) and sometimes 2 loads for darks (if the kids' clothes are added). The dark clothes are more thicker, heavier and larger. The kids do their own laundry actually, but I make sure they share loads as well. I would also check on the kids and find out if they have some laundry that can be included with my load.
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