My unlimited MetroCard was still valid for a day and a half so I left it to the poor soul who was robbed from all of his belongings in Lower Manhattan - he was also staying at my host's place in Williamsburg. I had a good flight to Dublin, where I had a very pleasant stay with Dublin's superhost. The guy has been hosting more than 1000 people. Now I'm back in Amsterdam, and it feels good to be among friends.
It was just a bit annoying to find out that a "1 zone" tram ride in Amsterdam costs 2,60 euro these days. I boycotted that and walked instead - with about 25 kg of extra weight.