Most people know you can put an open box baking powder in your refrigerator to help remove odors. But you can go a little further by removing odors and adding a nice smell to help cover anything that is lingering.

The first way is by adding lemon juice to your baking powder. Moisten the powder with a couple of drops and stir it in. Don't get the powder too wet or else it won't be able to absorb odors.

The second way is to use coffee. If you have some old coffee around that you think is to old to brew. Put it in an open container in your refrigerator. Coffee is great at absorb odors (which is why you have to keep it sealed normally) and it gives a nice smell to your refrigerator.