How do the Duggars Keep their Socks Straight?

Even in a small family, matching up socks with the right individuals can be challenging. So how do the Duggars, who have 19 children, manage this task? To make it more simple, the girls wear white socks, and the boys wear black. And they keep their family "clothes closet" very organized with bins for socks and undergarments.
What is your family's laundry system? How do you know who's clothes are whose?

How do the Duggars Keep their Socks Straight?How do the Duggars Keep their Socks Straight?