Last year I took Arm & Hammer baking soda and mixed it with water and used it as a home-made scent killer. It leaves a white chalky film after it dries. I believe that this worked very effectivly. Plus it saved me a ton of money.

I decided to do this after using some of the white lightning scent killer. To me it looked like baking soda and water, with a chemical that keeps the baking soda suspended.

Give it a try see if you like it.

On really still days I used an earth scent or white oak scent wafer from H.S.
It seemed to be a great combination.