No sinus infections in the house for years. When we get stuffed up we get relief in under a minute, and it doesn't settle or move into the chest. Inhale it from the bottle, or put a few drops on a tissue or cotton swab to carry around/ sleep with. When it is all of us I put 20 drops or so with a cup or 2 of water and simmer on the stove for a few hours. That also prevents colds from spreading(anitbacterial and antiviral). One person I know puts it in her vacuum when she vacuums.
How to teach colors to a toddler: "I read this article, changed my method, and was amazed when a week later my 18 mo. old knew his colors backward and forward. Even if youre not trying to teach colors, read this article from Scientific American, its fascinating!"