I can't recycle the bottles, the perfume loses its scent over the years, and there's just too much for me to use normally. Do you guys have any experience using old perfume/cologne for purposes other than smelling good? Googling this topic has gotten me nowhere, so I figured I'd try here for alternative, and possibly survival-related uses.

Could I use it as a firestarter or something? Or would the chemicals be too volatile, or not volatile enough?

Any ideas would be greatly appreciated. Thanks!