I've mentioned helpful street items before (link) but since I arrived in São Paulo I have also come across a series of helpful but surprising items in public toilets.
Forexample when in a restaurant one day I found a cup dispenser:
It was next to the paper towels so I wasn't immediately sure what it was for until I turned around and found the mouthwash. Since then I've seen lots of public mouthwash dispensers:
Oral hygiene is obviously high on the agenda around here..