The sandalwood oil can be a bit expensive so shop around. I've tried different brands and the one that gets the most compliments on the scent and that I like also is Mysore. I get a 5 ml bottle (very small but it lasts about 2 months...maybe a bit more...if I use it every day) from Amazon for $42 - http://www.amazon.com/Sandalwood-Mysore-Essential-Oil-Santalum/dp/B005H44E5G/ref=sr_1_1?ie=UTF8&qid=1373228814&sr=8-1&keywords=mysore+sandalwood+oil. At one drop each time, it lasts a long time. You may find cheaper brands that will work as well but not have the same scent as Mysore. If that doesn't concern you, then try it out. It's a more natural way to keep them away instead of spraying yourself with OFF! (which has so many chemicals).