Throw
Them
In
The
Garbage
If she doesn't like it, tough shit. She should do a better job taking care of her stuff. Oh, and don't tell her, just start tossing them.
I have my own towel bar and towel and nobody fucks with my towel. Trust me, you don't want to know what I do to the towel of an offender, but it involves the aftermath of some level 7 green chili.