JFK is a huge and sprawling airport. We headed to Terminal 5 and found JetBlue after a stressful time going through TSA (lots of shouting, some snark from the guards, and a continuous press of humanity moving at a shuffle through the "cattle chutes"). The terminal featured a nice variety of restaurants not far from the gates, vending machines like the ones pictured below (so glad! what would I have done without Kylie Jenner's makeup being available?), and charging stations for devices. Bathrooms were clean and well-maintained--the whole place looked pretty neat and fresh.
There was even a bookstore. Yes, I only took one picture of it based on what I've been reading recently (Odder). Mostly the books were fiction and typical bestsellers--there were even multiple copies of The Book Thief which surprised me based on when it was originally published.
We got coconut shrimp curry at Lucy's for a reasonable (for NYC) price. It was tasty and the flavor was well-balanced. I was surprised at how much I liked it.
Turbulence isn't a four-letter word, but it should be.
All seemed well on our JetBlue flight (other than the fact it was the smallest airplane I've ever taken across an ocean, with only three seats, a central aisle and three more seats. After I choked down my brief bout of claustrophobia going through first class (which did look lovely, although a bit odd in the arrangement) we found our seats and the goodies left on them.
There was a sleep mask and earplugs in the dark blue plastic bag, and a reusable silicone gift bag including a pair of blue ankle socks, a mint, and lip balm. The blanket was freshly laundered (and a welcome thing when the flight got chilly). We put our large carry-ons in the overhead bin and sat, aware that the flight was booked solid and we'd have someone at the window, leaving us the middle and aisle seats. 
The tv screen ahead of us greeted us by name, showed our flight information, offered a map of our plane's trip, and we were instructed to start ordering our drinks and meals. We were set. My son, nervous at this being his first flight, grabbed my arm while the staff went through the safety procedures. The art on the brochure hasn't changed in style since I remember first flying in the eighties. That was oddly comforting, with emphasis on the odd. I pointed out the emergency exits again to my son after they'd finished their instructions, and told him how many rows of seats were between us and the exit ahead of us (the exit behind was further away. I did not tell him it was important to know the number in case, in an emergency, the plane went dark or filled with smoke (I saved that nugget for the flight back).
The person who should have been seated at the window seat never showed up, so we spread out, making for a more comfortable experience. At least in that way. 
I gave my son some gum and reminded him to chew and swallow to help get his ears to pop, and soon we were taking off. The captain (or one of his two co-captains) explained we were to expect turbulence an hour and a half into the ride, but, shortly after getting our drinks, the turbulence surprised us. Dinner service was postponed, people were urged back to their seats, the seatbelt signs lit and stayed lit for the rest of the flight. Dinner was eventually cancelled as it was just too dangerous for the flight attendants to serve. Luckily we had eaten coconut shrimp curry at Lucy's in JFK's JetBlue terminal--but many other people hadn't been so lucky.
The turbulence continued. No food, no trips to the bathroom. My son was eventually able to drift off but every time I tried to, I was jolted awake by more shaking, rolling, and pitching. Finally dawn began to light the sky. We were in a calm as we approached the British Isles.
Warm chocolate croissants and drinks were able to be served, and after a few photos across the wing, we popped in more gum, felt the plane bank and turn toward Gatwick Airport (to the south of London) and we began our descent.
We were SO happy to land! We grabbed our stuff, headed for baggage claim and customs, and raced towards transportation to the AirBnB flat we'd arranged in London's Pimlico neighborhood, too aware that the man who needed to let us in had plans at 10am and we still had a way to go to get to him.