Thanks - yeah, cleaning your room is what you'd say. Or cleaning up your room. I think "clean up"means more like "tidy up", or "make orderly" - put stuff away, pick stuff up off the floor", whereas "clean" is more like "remove dust/dirt from surfaces", dusting, mopping, vacuuming, stuff you just don't do outside. But you can "clean up" your yard - pick up trash, raking, trimming the bushes. You would use sprzątać for all that?