As long as I've been developing film (I think I started back when dinosaurs roamed the earth...) I've taken it from the final rinse, put it into a dish pan with tap water and a few drops of PhotoFlo, pulled it out by one end, and hung it up to dry. I've never had a single mark from drying. (For 35mm I still give it a gentle "snap" to get some of the water out of the sprocket holes, but 120 comes straight out of the water and onto a clip.)
These days I dry my film in a bag that's designed to hand in a closet to protect clothes. It's about 2' square by 6' tall, and has a zipper up the front. No dust problems with this arrangement