How do you remove the odor from a shampoo bottle?

I would like to use the bottles for other things but dont want it to smell/taste like shampoo.......i know why taste i have my reasons lolHow do you remove the odor from a shampoo bottle?
i would say baking soda, bc i use that my fridge. just a thought.How do you remove the odor from a shampoo bottle?
Try vinegar