Air Freshener

I don't always use air freshener, but I saw this in my favorite cook book, "Make it fast, Cook it slow" and wanted to try it.
Fill small crock pot 2/3 way full with water and put a few drops of essential oil in. "Cook" on low for however long you want.
You can also use this as a odor eater. Use baking soda in water and "cook" on low and it will eat up all the bad smells in the air.