This cleaner will make any shower or tub easier to clean and keep that soap scum at bay. Hooray! Peppermint essential oil is also a refreshing option for this recipe. 1 cup water ½ cup vodka or white vinegar (if you have marble or granite in the shower, use vodka) 10 drops lemon essential oil 2 drops orange or lime essential oil In a glass spray bottle, add all the ingredients and shake the mixture. Spray your shower or tub daily after showering. No rinsing is required.