We simply MUST use two consecutive slices of bread to make a sandwich, otherwise the sides don't match. One person has to sort the jelly packages by flavor when he eats breakfast at a restaurant. No one mentioned putting the sugar packages in order by type, but I am sure someone does this. Several of us are stressed out by waffles. We have to have equal amounts of syrup in each pocket of the waffle, and have to cut the waffles into equal sized pieces.
Round waffles are especially stressful.
One person must sort his French fries by length before he eats them. I don't recall if he started with the shortest or the longest. I also recently discovered that a business acquaintance puts black pepper on his fries. And then there are M and M candies. We learned that several people have specific ways of sorting the candies and eating them.