Perhaps I could use some education on the particular difference between the two, but I'm thinking I mean either.
More in depth, I would say....you use the cloth...cleaning "whatever" in the kitchen...and hang it on the center to dry. It's gross when you're done using it, why did you preserve it's dirtiness? If you dried off clean hand washed dishes with it, that's great. Put it in the laundry.
I don't understand harboring several days of "gross cloth" hanging on the middle of the kitchen sink.