There are a lot of anti-austerity strikes in Italy these days, and on Saturday the cleaners at Rome's Fiumicino walked off the job. On checking in at the airport Sunday morning, I noticed garbage everywhere, but did not start taking photos until I was through security so these are not the worst images.
It demonstrates that the real cost of fast food isn't borne by the vendors, and the real cost of bottled water isn't borne by the water companies, but by the taxpayers for cleaning the streets and in your landing fees for cleaning the airports. Even if you are a good TreeHugger and never touch bottled water and drink your espresso out of a china cup, you are paying for everyone else.
That's why we say there should be deposits on everything.