You each had your OWN mason jar? My, didn’t you live in the lap of luxury, LOL!
Our family must have been rich. We only ever had one car, but on vacation, all us kids each got an individual grocery bag half full of comics for the 9-hour ride to the South—and our mason jar wasn't for drinking from; it was only for peeing in.
On the trip to Florida, there were all-you-can-drink orange juice stands every thirty miles or so. What a treat!
Who else played car games on the long trips? Like counting head of cattle on "your" side of the car, trying to be the first one to get to 100. Or calling out "Stuckey's!" (or "Esso!" or "Burma Shave!") every time you were the first to spot one of their signs, and whoever got to 25 first. Then there were the license plates from many states...