The storm was headed for the metropolitan area Wednesday, threatening more flooding and power outages that could undo some of the repairs made in the past few days.
With Election Day on Tuesday and so many voters displaced by Sandy, New York Gov. Andrew Cuomo issued an executive order allowing people to vote at any polling place in the state. New Jersey had already taken similar measures.
The U.S. death toll from the storm has reached at least 110. An estimated 20,000 people in New York could still be homeless from the storm two weeks from today.
In New York, power has been restored to nearly 80 percent of customers who were blacked out in the storm, but efforts to get everyone back on line could be hampered by more wet, windy weather.
With temperatures dropping, some are depending on the kindness of strangers to get by.
"Well it's pretty awesome, I mean like it's cool that someone doesn't need some stuff and they drop it off and then these people could come over and they actually need it," said Desi Montag, a Staten Island resident.
Earlier Monday, commuters hit major delays as they returned to work and school. Official warned people to brace for long waits and crowded subways because of fuel shortages.
Trains were so crowded on the Long Island Rail Road that dozens of people missed their trains. With PATH trains between New Jersey and Manhattan still out, lines for the ferry in Jersey City quickly stretched to several hundred people by daybreak.
Here's how you can participate in ABC's "Day of Giving:"
- TEXT: Text ABC to 90999 to give a $10 donation to the Red Cross.
- ONLINE: Go to www.redcross.org/abc to make a donation of any amount.
- BY PHONE: Call 1-800-HELP-NOW. This number will bypass all the other menu options and direct your call to Hurricane Sandy relief.
The Associated Press contributed to this report.