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).
For jetBlue baggage, you can board with one carry-on item and one personal item, both free of charge. The carry-on luggage policy pertaining to personal items includes laptops, hand bags, and briefcases. You also receive one free checked bag as long as it does not exceed the airlines weight and size limitations.