My mom was always a one use only person but I didn't
stick with that any time at all. Live through a couple
droughts like I have and you'll conserve any way possible!
I put 4 towels on the rack and if I don't wash my hair
(only every 3 days or so) then the rotation is enough to
get them completely dry by the next time I need them.

Towels on the rack in hubby's bathroom hang right under
the furnace vent, so they dry even better. And warm times of
the year, windows in bathroom are left open.

As long as they get nice and dry I'm fine, I hate that limp
slightly damp feel.