I always use the line.
Also:we have in the bathroom, a special rail made.
I had to go buy like 50 coat hangers! and we place on a very heavy duty rail up from one wall to another in the bathroom.It's made of stainless steel.You can buy these round hole-mounts, that get screwed into a wall...so it is Very sturdy.
Cost like $25 for the project all up....So if it rains, it all get's hung up.
Takes two days to really dry, but it's not in the way.