I often dry things like jeans, bras and underwear on a line when they are new, but once they're older I don't bother usually. There's always a few things you do have to dry flat like some hand knits.
I wonder if towels soften up with the balls. I hate using fab sof on them because it builds up eventually. Normally I just dash and dry w/o it, but our water is so hard eventually they lose softness so I succumb to using it after a few years.