In a 4 ounce glass or metal spray bottle, combine vodka (or witch hazel) with essential oils, then shake to disperse.

Add the water and shake again.

Label the spray bottle with "Homemade Insect Repellent," ingredients used, and date made.

To use, shake thoroughly and spray clothing.

You can make smaller batches by dividing the ingredients or larger batches by multiplying them and placing them in appropriate sized bottles.