I also have a jar fetish–right now I am in love with Weck jars, but when we buy something in a cute jar I just have to save the jar. Driving my family bonkers, especially when I make them eat what’s in the jar so I can have the jar! I do use them, so I have an excuse.
I treated myself to a tiny jar of cheap caviar for NY Eve (to eat over brie as someone on this forum suggested–nom, nom!) and I’m not sure if I was more excited for the caviar or the jar. OK, it WAS the jar, the caviar was cheap and lacked flavor.