Bad business practices. They screwed up the reservation, were AWARE that the reservation was set for the wrong day, and not only refused to make accommodations, date changes, or refunds, but even refused to admit that they were at fault. And, after reading reviews from people who have stayed there, I feel like I dodged a bullet.
As of June 1 2015, JetBlue has began charging for all checked bags, including the first checked bag, on its lowest priced fares. All checked bags must not exceed 62 (157.48 cm) in overall dimensions (length + width + height) and cannot exceed 50 pounds (22.73 kg).
JetBlue passengers are able to bring small bags aboard the aircraft as carry-on luggage. All items brought aboard the plane must meet JetBlue's requirements for safe travel. In the event that your baggage does not meet the requirements for carry-on luggage, JetBlue also offers checked baggage service for its passengers.