For anyone wishing to donate, City Harvest in NYC has a good reputation, and good ratings on Guidestar and Charity Navigator. I don't have personal experience with them, but I have seen their trucks picking up food surplus from restaurants and farmer's markets for years.

According to their website, they responded to hurricane-related needs very quickly.

I'm looking into volunteer opportunities, though I may take another day or two to rest. I have a slight backache from hoisting heavy water containers, and climbing stairs didn't agree with my feet. My legs are plenty strong thanks to cycling! Sadly, I expect the need for volunteers and donations will continue for quite a while.