Now that we are going to get groceries less often, I ran across this great article on the things that you should NOT store in the fridge. I think I violated at least half of these rules. I never knew that cucumbers, tomatoes and onions should not be stored in the fridge. (OH yeah, and don't store the onions near the potatoes in the pantry!)
Check out the full list and why in this article from Reader's Digest.