I used to write on my eggs, And if I am using tupperware I tend to cut off the use by and tape it to the container. If you find an opened box of crackers in my house you'll find it inside a ziplock bag within the box. I cannot stand open things. It drives me crazy. Its like open things in the fridge or things that are open in the freezer they take on other smells and tastes and its just wrong.

I will think of others... or maybe I'll ask DH.
OMG!!! Ido this too!! aaarrhh do i need help?