Do you all still think the best option for checking bags is with a hotel doorman? What about the baggage services at JFK? I have a Delta flight that arrives on a Friday morning at 8:25 am. We're planning to explore the city and then we fly out to London at 7 pm that night. We can lug our bags into the city and check them with a hotel if that's the best option, butif we could avoid bringing them on the Subway that would be easier.

Also, how busy will the subways be around 9 am on a Friday? Also, for our return to JFK we'll likely be leaving the city around 4:00 or 4:30. how busy would they be then?

Thanks!