Apart from the obvious passport and boarding pass etc. there are some luxuries which you definitely DON'T get on some flights. I have started learning from mistakes in the past which have made my flights miserable and have some ESSENTIALS that I will have with me on flights now.
Jumper or something to keep me warm
I swear airlines want you to freeze to death these days. They don't understand that having the air conditioning on an airplane 24/7 will eventually make it cold...so cold that I start shivering. It may just be me (because I am very sensitive) but the least they could do is turn it off for an hour or so AT LEAST. Anyone else have this problem? It's worse when you are flying from a hot country because you are most likely wearing summer clothes so you have nothing to warm yourself up with. Obviously if it's a short haul flight it is bearable as you would have probably been hot before so the air conditioning is very refreshing.
You will occasionally get a screaming baby, a loud speaker, or just a person who won't sleep and constantly be talking. What is the best way to block these noises out? EARPHONES!
If it is a long haul flight, there will most likely be televisions (unless it's a cheap flight) so you can use earphones to watch a film, listen to music if you don't have your own, or play games. They do normally provide headphones but they are cheap and rubbish quality, and don't do a good job at blocking noise out around you. I have gone a few flights without earphones but they have been short haul flights and I have just about survived them.
This is only recently but you don't know what germs you can catch on a flight, especially in the toilets! I love the feeling of hand moisturiser and it always gives out a nice smell, which is perfect after having some smelly food!
Water (and maybe a snack or two)
What is happening to flights nowadays? Having to pay £4 for a bottle of water on a flight is unacceptable. When you have an early flight and just want to get on the plane and get to your next destination, you sometimes tend to forget to buy that bottle of water before getting on the plane. You then get a special surprise that it actually isn't free anymore. Now, this isn't for every airline (actually most airlines have common sense and offer water to everyone) but Airasia need to sort their priorities out. Just incase you are flying with a cheap airline, or one you've never flown with before, just bare in mind that bottle of water you need to buy before getting on that plane.
I have only recently invested in one of these (just this February) and I honestly don't know how I survived long haul flights before it. I slept like a baby the first time I used it and I normally struggle to sleep on any transport so it worked like magic. From now on, I will most likely be taking this on every flight I have in the future. It is easy to travel with as it squeezes up into this little bag which you can attach to your travelling bag. The bag also comes with a set of earplugs. On the pillow is a pocket where you can keep your phone so you know where it is. I don't use this as my phone is sadly too big for it and it easily slips out but it is very handy. You can find this travel pillow here.