what do you do with wet towels after your shower?

[SlightlyItchyBraStrap]

I don't want to wash them after only one use. If there's room on the bathroom rail I hang mine there, or over a door, or outside in good weather.... No real system, and I usually forget to fetch it and then we have several "in use" towels floating around the house!

Does anyone have a system that is easy for the whole family to use and actually works??

We all have our own (different colours).
If they're very wet, they air on the bannisters until they're nearly dry. Then just hang them on the bathroom towel rail. DCs do the same but storage once dry is on a hook on their door. We have a shared hand towel which I try to change every day.

Ours get hung up on towel rail in en suite. Kids get flung over the banister.