Keep the mess in the towel then throw the towel in the laundry when you get home from your trip.
Velcro on kitchen towels so they don't fall off!
One of these for my basement would be sooo nice to have. Seems pretty simple to make, add a coat of spray paint (remember to get the kind made for plastics) organize all the wet stuff you don't want making it's way back upstairs.
Princess towel coverups. Super fun for beach or after pool - SO ADORABLE. I totally need this!!!