Toilets

Public toilets are rare in Naples.
Bars and cafes usually have toilets, although you may need to buy a coffee before you can use them. Public toilets are readily available at museums, and there are public toilets at the main bus and train stations.
Several public toilets have attendants, who'll expect a small tip – €0.50 should do.
There are free toilets at Pompeii and Herculaneum.