I just found this recipe on Pinterest and I do believe I'm going to make some of these today. The recipe is on Kitchen Kneads if you want to check it out there. I like this idea better than just plain old baking soda in the fridge. In their recipe, they use an essential oil blend called Purify. I don't have that kind, I just have single essential oils like peppermint, lemon, lavender, rosemary, etc. So, I think when I make them, I'm going to use the lemon scent. The recipe is easy and only uses 3 ingredients!
1 1/4 cups baking soda
1/4-1/2 cup water
8 drops essential oil (Like I said, they call for Purify essential oil blend.)
Combine baking soda, water and oil in bowl. Add more water until a thick paste forms. Put in silicone molds and let dry 2-3 days or until completely hardened. Carefully remove and place 2-3 small ones in the back of your fridge. These will last up to a month. Store the others in an airtight container until ready to use.