What you need to know, if you are planning a trip to North America?

From: pixabay
Flying by a plane is not a piece of cake. You need to know many of thinks before you get on board, and even much more faster. What to put inside carry on baggage, and what difference is between checked luggage? Can I take any type of meals on board? And what about medicament? And traveling with pets? What documents do I require when I am a disabled passenger? May I have a diving equipment with me? And plenty more. And what about some specific destination? What you need to know when you are planning to travel to/from Canada or USA?