I have used the eucalyptus oil for when my daughter was really congested. I put a few drops in the humidifier and she slept really well after 2 nights of constant waking up. The lavender smell is amazing and used it for making my own cleaning supply. I used a 5 to 7 drops of lavender in a spray bottle of warm water and vinegar. Works great on counters, glass, mirrors and leaves a wonder smell. I tried tea tree oil with a little bit of oil on a blemish and it it got better in 2 days. The bottles will probably last me a good 6 to 9 months. Great buy for the price.
For a more citrus-y scent that will calm any strong emotions you might be feeling before bed, try combining four drops of bergamot, four drops of frankincense, and two drops of vetiver. Adding frankincense into the mix will soothe any wired thoughts in your brain that might be keeping you awake, relieve any bodily tension you're unknowingly holding on to, and squash any nighttime insomnia that's interrupting your beauty sleep.