Think about what different loads of laundry you do. Everyone sorts their loads slightly differently, but my categories are:
Pants / Slacks
Blacks / Dark Colors
Brights / Whites
Back in high school, I hated sorting my laundry when I had an overflowing pile in front of me. It was too daunting of a task for me. For whatever reason I did not have any actual laundry basket. What I did have were several of the plastic stackable drawers, which I would use to sort my laundry into. I discovered when I was in high school that the amount of dirty clothing you can shove into one of the plastic storage drawers until you can't shut it anymore is about the same size as a large (but not overfull!) load of laundry.
Soon, I discovered that if I just put the dirty clothes directly in the drawer for that load instead of in the pile of random laundry, I saved time and floor-space in my bedroom! So I continued on and picked up the habit of putting my dirty laundry into drawers for the individual loads.
When we moved into The Bungalow, I brought several of my plastic stackable drawers and made 2 stacks, four drawers high, for me and my husband to sort our dirty clothes into. Whenever we pick up our dirty clothes, we just automatically sort them into the individual drawer for that load. It is a lot easier to sort as you go rather than all at once.