Sort Laundry As You Go

So as to run full loads only in my washing machine, which is most efficient, I keep 2 popup hampers in my bathroom closet. One has a little hanging tag marked "Lights", and the other "Darks". As I take off my clothes, they are put into the appropriate hamper. When one is full, I do a load of laundry. In a larger family, this can be done in each person's room or bathroom, and combined for laundry day. It saves sorting dirty laundry, and it saves time.