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 Airways baggage allowance. One carry-on item limited to 22 inches long, 14 inches wide and 9 inches high for all aircraft types. One personal item less than 17 inches long, 13 inches wide and 8 inches in height. Any carry-on bag that does not fit in the overhead bin must be checked.