So in my eagerness to be more organized this morning, I decided to add the tiny bit of leave in conditioner in one bottle with the larger bottle. It wasn't until I smelled mint after my shower that I realized what I had done!
In this case, the mint spray has many of the same ingredients I would put into a leave in conditioner - panthenol, hydrosols, hydrolyzed proteins - so really the only down side is the fresh scent of mint that follows me instead of oatmeal, milk & honey (which smells a lot like marzipan to me - and I love marzipan!).
Again, I can't stress this enough - label everything!