I'm open to criticism on this, but is the waterproof container really the way to go? These containers don't breath. In PA, my car can easy go over 100 degrees in the summer. Then I jump in and crank the A/C. These extremes would most likely cause condensation inside the container and spoil its contents.

What purpose does the waterproof container serve and won't that purpose be defeated when moisture is created inside of the container? I had the metal portion of an air horn rust completely, when left inside of this type of container on my boat.

Thoughts?