You can have a spa every day with these 100% undiluted essential oils. Just put 5 drops of your essential oil in a 10 -20ml of water and pour them in your aromatic burner. Then wait a few minutes to let the water evaporates together with the aroma.
Tea tree oil is very popular because it is the best anti pimple and anti-acne solution. Why not make your own tea tree personal care use. Just add 5-10 drops of tea tree into your regular skin toner. Also, you can explore many other uses of tea tree.