You've seen fizzy bombs for baths, right? Well, you can make a cleansing fizzy for your toilet, too. All you need is 1 1/3 cups baking soda, 1/2 cup citric acid, and 90 drops of essential oil. Mold the mixture in an ice cube tray, and allow to dry. To use, simply drop in the bowl and, once the bubbles stop, scrub as usual.