Here are a few tips from the Asbell Home on managing the laundry in our larger than average family.
Think about how your family uses laundry and then make a plan that fits your needs. Organize according to your use and needs. Do they throw clothes on the floor in a certain room? Then that room needs a hamper! You can't fit in two loads of laundry a day? Then aim for one or do it all in one day.
Do laundry daily. A little a day is preferable to doing it all in one day. If you do miss a few days to illness or whatever, you will not be knee deep in dirty clothes with half naked family members. We spend about half an hour on laundry per day, about 4-5 days per week. That includes hanging it on the clothesline. At the time of this writing, there are seven of us with a baby due in four weeks. We participate in many activities that require special clothing or linens, but we have managed to keep laundry under control with these tips.
You can read the rest here: http://www.contentmentacres.com/laundrytips.htm