You know you will have laundry. After a week camping in the cold, the heat and the dust we get LOTS of laundry!
I cannot stand clean clothes going in a bag with dirty laundry - even if it is in a separate bag.
I use the Super sized storage bag from Clearly Organized bags.
It held our whole families laundry for a week, and meant I could get a load on easily the second we walked in the door.