How to Avoid Smell on Refrigerator

Refrigerator is always full of any kind of food, and you know how the smell is so bad. It is my small tips on how to avoid it.
1. Put coffee powder in a plate, and save for several days to absorb odors
2. Use lemon and clean the outside your refrigerator with it
3. Use tomato juice and do the same with point 3
4. Use baking soda to clean inside of the refrigerator and to absorb odors
5. Use tea inside the refrigerator
That is my little tips