1. always weigh your bag before you leave to go to the airport, because it may be over the weight limit.
2. don't put loads of makeup on when going on a plane because it will probably smudge when you are trying to sleep.
3. roll your clothes when packing because you will save loads of space.
4. eat a lot of nutritious food before going onto a plane because otherwise you will have to pay for really unhealthy food.
5. bring face wipes because after a plane trip you feel all sleepy and tired.
6. check the weather before you go anywhere because you might pack warm clothes when it is actually really hot.
7. don't bring pajamas because you could just wear a casual top and some leggings, you will save more space.
8. bring a pair of leggings because you will probably need them no matter where you are going.
THOSE ARE THE HACKS HOPE THEY HELP YOU!
I'm that crazy weirdo chick that fangirl's to replace normality