The only saving grace on a 14 hour flight is no one sitting in the middle seat.
I learned to order an Asian Vegetarian meal on Delta - it's much better than the regular vegetarian meals, except when dinner is an okra-based meal, and the same thing is served again for breakfast.
We landed in Atlanta, picked up bags, went through Customs, then dropped our bags back off at the "re-check" counter, and then go through security again before getting to the next terminal. Asking people to take off their shoes after a 14 hour flight is just mean.
Delta no longer serves tomato juice on their domestic flights. Instead, you can opt for Bloody Mary mix. Crazy, but at least it has more flavor.