You can also use baking soda to remove residues that cause hang-over odors. Dilute some baking soda with water and pour in your bottles and let set for a day or two. Works!
How To Remove Scent From Perfume Bottle?
Soak the bottle in pure lemon juice for the day then wash it in hot water, if there is still a hint of scent repeat one more time, that's how I get the scent out of mine.