First time flyer tips?

In a couple months, I'll be taking a 5 hour flight to MA, but I've never ever been on a plane. I've never even been in an airport. I'm trying to get as much information as possible so that I don't humiliate myself and/or do something just plain stupid. Any tipa would be greatly appreciated!

Eithad airways baggage issue?

Before 31st man 2018 the eithad airways baggage rules were that 2 pieces of checked luggage was to be taken both pieces not exceeding 23kg.

I've had a look on the website again:
http://www.etihad.com/en-gb/before-you-fly/baggage-information/allowances/

And from the site i understand that a passenger can take one piece of checked luggage not exceeding 30kg.(not sure if this is correct tho)

So what I would like to know is that is it allowed for a passenger to take ONE PIECE of checked luggage not exceeding 30kg OR does the TWO piece checked luggage both not weighing 23kg still apply.

Just need some clarification just to make sure.

I would appreciate if anyone could answer my question thanks.

Is this illegal? Drugs/Airport Question?

Okay. Loaded question. My mom is headed to China soon. She has an old Aunt there who is ill and in pain, and they want a medication Tylenol No. 2 (acetaminophen/codeine/caffiene). It's sold OTC in Canada and not sold in the states I believe.

My first question is… If I visit Canada, purchase some, and bring it back, am I committing a crime?
My second question is… If I complete said task, and my mom packs it in her luggage to the airport… Will she get in trouble for having narcotics or something? I mean, are the dogs going to sniff it out and yada yada. I don't want to risk it unless I know it isn't illegal

Can i use an ikea FRUKTA bag as hold luggage on an easy jet plane?

I'm travelling to spain soon ona field trip, and i want to take a 65l rucksack but all of my stuff won't fit without me putting somthing like my sleeping bag attached to the side which i've been told easy jet can be funny about. I was wondering if i can use the Big ikea frukta bags (the ones with the zips and kinda like a holdall) to put my rucksack with the extras on the sides into it… Would this be safe if i locked teh bag and would the airline (easy jet) allow it?

What are some good areas that are suburban like near the Newark airport in New Jersey?

My boyfriend recently got a job with Port Authority, but he lives 70 miles currently from the airport, now he's looking at apartments near the place, but not directly in Newark.
He basically wants something that's less that's less than a 40 mile drive, a good area.

My boyfriend and me are not from Jersey, so we have no idea what's a good area.