Sporting events. This what I do.
I always pay premium to park close. I've paid $80 to park at the Taco Bell on Addison at Wrigley before.
I space out snacks through the game to keep them occupied. Nachos/Popcorn/Candy last longer.
I know I'm going to miss parts of the game for bathroom runs - but I go during times I know it won't be busy. Right before kickoff during the national anthem and 5:00 before halftime and 5:00 before the 4th.
I'll try to make the contests and jumbo screen stuff a big deal so they can be entertained a bit.