I have read several reports about the benefits of sniffing rosemary to help memory and to aid to help prevent Alzheimer's Disease. (see article from The Huffington Post)
The studies show that sniffing rosemary has an arousing effect on a brain chemical called acetylcholine. As long as I don't have to ingest the rosemary, I'll be fine! The only thing I have used rosemary for has been in chicken dishes and it hasn't been my favorite flavor.
I told my friend Mona, "I'm going to buy several bottles and have one to use in the car and I'll give others to friends and my Red Hat Ladies as a favor." She answered, "I'd be careful if I were you; as many times as you get stopped by the cops, they might think you have another HERB!"