Thank you Kebod for the info. Yes, baking soda may be OK for some, but definitely not for me. And that may be correct w/the salt combo as I did both and then just used baking soda. But I appreciate the data. However, nothing in the data states that stains, esp nicotine, will be removed by using baking soda. As I stated, it did not help me. Perhaps you've never smoked nor had this type of staining. You almost have to have been a smoker to know what nicotine stains are. Very nasty habit but point is, I'm no longer smoking and would like to get rid of this stains on my own.