Pleas check out my article on how to eliminate strong house odors and the different hom scenting techniques that you can use.
http://www.associatedcontent.com/article/631471/ways_to_eliminate_strong_home_odors.html
I always have an oil burner going in my house, as I think it is a bit like perfume, you don't smell it when you are around it at all times, so just as a safe guard i think having the oil burner is good.