Freeze liquids over the 4oz rule. You can get a gallon size freezer bag of gumbo through tsa this way.
Row 9 on Southwest flights is where drink service starts.
I don’t fly often but I’ve noticed most people don’t do this: Tie some sort of matching cloth to the handles of each piece of your luggage. I have a red bandanna tied to each of mine. Much easier to find or distinguish your bags from others. The odds of someone else having the same color bandana as well as similar looking luggage is low.
The bottles in your quart sized Ziploc bag can absolutely be filled with booze.