If your refrigerator doors aren't stuffed to maximum capacity, things probably move around when you open your door. A little non-slip material on your door shelves will keep things in place.
Nobody likes seeing their precious condiments fall hopelessly to the floor, and YouTuber channel Hack It decided to resolve the issue. Get a sheet of non-slip material, cut it to fit your shelves, and you're all set. Now when you open your refrigerator excitedly, nothing will topple or slide.
Fridge Slip Solved [YouTube]