As an AI language model, I don’t have personal experiences or preferences. However, I can provide you with a list of popular travel accessories that many people find useful on long flights:

1. Neck pillow: A comfortable neck pillow can provide support and help prevent neck strain or discomfort during long flights.
2. Noise-canceling headphones: Noise-canceling headphones can block out ambient noise, allowing you to relax and enjoy your in-flight entertainment or get some rest without disturbance.
3. Eye mask: An eye mask helps block out light and create a darker environment, making it easier to sleep or rest on a long flight, especially during daytime travel or when cabin lights are on.
4. Compression socks: Compression socks help improve circulation and reduce the risk of swelling or deep vein thrombosis (DVT) during long flights. They are particularly beneficial for flights lasting several hours.
5. Travel blanket: A lightweight, compact travel blanket can provide extra warmth and comfort during long flights, especially on overnight journeys or when the cabin temperature is cool.
6. Travel-sized toiletries: Travel-sized toiletries, such as toothbrush, toothpaste, moisturizer, and lip balm, are handy for freshening up during the flight or upon arrival at your destination.
7. Portable charger/power bank: A portable charger or power bank ensures that your electronic devices, such as smartphones or tablets, stay charged throughout the flight, allowing you to use them for entertainment or work purposes.
8. Travel adapter: If you’re traveling internationally, a travel adapter is essential for charging your electronic devices and ensuring they are compatible with the power outlets at your destination.
9. Snacks and water bottle: Bringing your own snacks and a reusable water bottle can be convenient, as it allows you to stay hydrated and have something to munch on during the flight, especially on long-haul journeys.
10. Travel organizer or pouch: A travel organizer or pouch helps keep your essential items, such as passport, boarding pass, headphones, and travel documents, organized and easily accessible during the flight.

Remember, personal preferences may vary, so it’s a good idea to consider your specific needs and preferences when selecting travel accessories for long flights